Re: [PHP] Re: use strict or similar in PHP?

2009-03-01 Thread Jim Lucas

Stuart wrote:

2009/3/1 Shawn McKenzie nos...@mckenzies.net


Stuart wrote:

2009/2/28 Shawn McKenzie nos...@mckenzies.net


Robert Cummings wrote:

On Sat, 2009-02-28 at 00:11 +, Ashley Sheridan wrote:

On Fri, 2009-02-27 at 14:32 -0500, Robert Cummings wrote:

On Sat, 2009-02-28 at 00:02 +0600, 9el wrote:

---

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On Fri, Feb 27, 2009 at 11:46 PM, Robert Cummings 

rob...@interjinn.comwrote:

On Fri, 2009-02-27 at 09:28 -0700, LuKreme wrote:

On Feb 27, 2009, at 6:12, Hans Schultz h.schult...@yahoo.com

wrote:

Hahahah,I was thinking the same thing

The trouble is most people mean compile a source file to an
executable binary when they sat compile. By this measure, PHP

does

not compile.

I add the following to the top of my PHP shell scripts:

   #!/usr/bin/php -qC

Then I do the following:

   chmod 775 script.php

Then I run it as follows:

   ./script.php

Look... and executable binary :) Don't say it's not binary. All

data

on

a hard disk is binary (although I do know what you mean ;)

Well you are running shell script style execution its not example of
Compiled code or Binary

The data in the file is ASCII or UTF text :)

Which are subsets of binary representation ;)


Compilation happens when its zendOptimized or OpCoded. Its then is

converted

into binary content file.

But one could probably quite easily set up a system whereby

eAccelerator

or APC or Zend Optimizer cache bytecodes are torn from a file run
similarly. As I said in an earlier post... the line between the
definition of interpreted language and compiled language is quite

blurry

these days.

Cheers,
Rob.
--
http://www.interjinn.com
Application and Templating Framework for PHP



ASCII is only a subset of binary in a pedantic, literal sense. When
people say binary file, they mean one that contains characters which

are

outside the normal display spectrum, such as chr(0), etc.

And the argument that PHP is not compiled requires a certain level of
pedantry and it is still an incorrect argument since it most certainly
is compiled to an intermediary virtual machine code.

Cheers,
Rob.

Still, in PHP $compile_time == $run_time.


I haven't been following this thread, but this caught my eye as being
completely wrong. There are distinct compile and execution phases when

PHP

runs a script, and different rules apply to each. If you don't believe me
try defaulting the value of a class variable to the result of a function.

-Stuart


Rob, I wasn't talking about time.  I was talking about they're pretty
much the same as in when they execute.

Stuart,

Great, then show the OP how he can enforce strict error checking at
compile time and halt compilation and runtime altogether.



Like I said I haven't been following this thread so have no idea what the
original question was. I was just pointing out that your assertion
that $compile_time == $run_time is incorrect.

As far as error checking goes the PHP engine performs syntactical checks
during compile time but due to the highly flexible nature of the language
it's not possible to do most error checking until runtime.

-Stuart



And I quote:

Hello,
I am beginner with PHP and prior to PHP I have worked with java for some time
and with perl for very short period. I can't help to notice some things that
are little annoyance for me with PHP, but I am sure someone more experienced
can help me :-)
Is there in PHP something like use strict from perl? I find it pretty
annoying to need to run script over and over again just to find out that I
made typo in variable name.
Is there some way for PHP to cache some data on the page? I like very much
PHP's speed but it would be even better to be able to cache some frequently
used data from database?
Also regarding databases, I liked a lot java's way of sending data to database
using parameters (select * from user where username = ? and then passing
parameter separately with database doing necessary escaping and everything).
Is there something like PHPDBC similar to JDBC?

TIA,
Hans

End Quote;

Jim Lucas

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Re: [PHP] Re: use strict or similar in PHP?

2009-03-01 Thread Robert Cummings
On Sat, 2009-02-28 at 18:57 -0600, Shawn McKenzie wrote:
 Stuart wrote:
  2009/2/28 Shawn McKenzie nos...@mckenzies.net
  
  Robert Cummings wrote:
  On Sat, 2009-02-28 at 00:11 +, Ashley Sheridan wrote:
  On Fri, 2009-02-27 at 14:32 -0500, Robert Cummings wrote:
  On Sat, 2009-02-28 at 00:02 +0600, 9el wrote:
  ---
  Use FreeOpenSourceSoftwares, Stop piracy, Let the developers live. Get
  a Free CD of Ubuntu mailed to your door without any cost. Visit :
  www.ubuntu.com
  --
 
 
  On Fri, Feb 27, 2009 at 11:46 PM, Robert Cummings 
  rob...@interjinn.comwrote:
  On Fri, 2009-02-27 at 09:28 -0700, LuKreme wrote:
  On Feb 27, 2009, at 6:12, Hans Schultz h.schult...@yahoo.com
  wrote:
  Hahahah,I was thinking the same thing
  The trouble is most people mean compile a source file to an
  executable binary when they sat compile. By this measure, PHP does
  not compile.
  I add the following to the top of my PHP shell scripts:
 
 #!/usr/bin/php -qC
 
  Then I do the following:
 
 chmod 775 script.php
 
  Then I run it as follows:
 
 ./script.php
 
  Look... and executable binary :) Don't say it's not binary. All data
  on
  a hard disk is binary (although I do know what you mean ;)
  Well you are running shell script style execution its not example of
  Compiled code or Binary
 
  The data in the file is ASCII or UTF text :)
  Which are subsets of binary representation ;)
 
  Compilation happens when its zendOptimized or OpCoded. Its then is
  converted
  into binary content file.
  But one could probably quite easily set up a system whereby
  eAccelerator
  or APC or Zend Optimizer cache bytecodes are torn from a file run
  similarly. As I said in an earlier post... the line between the
  definition of interpreted language and compiled language is quite
  blurry
  these days.
 
  Cheers,
  Rob.
  --
  http://www.interjinn.com
  Application and Templating Framework for PHP
 
 
  ASCII is only a subset of binary in a pedantic, literal sense. When
  people say binary file, they mean one that contains characters which are
  outside the normal display spectrum, such as chr(0), etc.
  And the argument that PHP is not compiled requires a certain level of
  pedantry and it is still an incorrect argument since it most certainly
  is compiled to an intermediary virtual machine code.
 
  Cheers,
  Rob.
  Still, in PHP $compile_time == $run_time.
  
  
  I haven't been following this thread, but this caught my eye as being
  completely wrong. There are distinct compile and execution phases when PHP
  runs a script, and different rules apply to each. If you don't believe me
  try defaulting the value of a class variable to the result of a function.
  
  -Stuart
  
 Rob, I wasn't talking about time.  I was talking about they're pretty
 much the same as in when they execute.

They're not if you're using a compile cache.

Cheers,
Rob.
-- 
http://www.interjinn.com
Application and Templating Framework for PHP


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Re: [PHP] Re: use strict or similar in PHP?

2009-03-01 Thread tedd

The OP asked:


Is there in PHP something like use strict from perl? I find it pretty
annoying to need to run script over and over again just to find out that I
made typo in variable name.


And I've been waiting for an answer myself, but I haven't seen one.

From what I remember, in perl if you use use strict; it requires to 
to define your variables (my) before using them. If you make a 
variable typo in your code, then you'll trigger an error when you try 
to run it.


From what I've seen of php, even with using strict error reporting, 
you can do that all day long without generating an error.


So the answer appears to be No, you can't do that in PHP. Is that the answer?

Cheers,

tedd
--
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Re: [PHP] Re: use strict or similar in PHP?

2009-03-01 Thread Robert Cummings
On Sun, 2009-03-01 at 08:36 -0500, tedd wrote:
 The OP asked:
 
 Is there in PHP something like use strict from perl? I find it pretty
 annoying to need to run script over and over again just to find out that I
 made typo in variable name.
 
 And I've been waiting for an answer myself, but I haven't seen one.
 
  From what I remember, in perl if you use use strict; it requires to 
 to define your variables (my) before using them. If you make a 
 variable typo in your code, then you'll trigger an error when you try 
 to run it.
 
  From what I've seen of php, even with using strict error reporting, 
 you can do that all day long without generating an error.
 
 So the answer appears to be No, you can't do that in PHP. Is that the 
 answer?

You can do anything you want... :)

?php

class StrictProps
{
private $___init = true;

function StrictProps( $props )
{
$propsList = func_get_args();

foreach( $propsList as $props )
{
if( is_array( $props ) )
{
foreach( $props as $prop = $init )
{
$this-{$prop} = $init;
}
}
else
{
$this-{$props} = null;
}
}

$this-___init = false;
}

function __set( $name, $value )
{
if( !$this-___init )
{
die( 'Attempt to set non-existent property: '
.get_class( $this ).'-'.$name.\n );
}

$this-{$name} = $value;
}

function __get( $name )
{
die( 'Attempt to get non-existent property: '
.get_class( $this ).'-'.$name.\n );
}
}

//
// Declare strict properties...
//
$my = new StrictProps( 'foo', 'fee', 'fii' );
print_r( $my );

//
// Declare and intialize strict properties...
//
$my = new StrictProps( array( 'foo' = 'Foo1', 'fee' = 'Fee1' ) );
print_r( $my );

echo $my-foo.\n;
echo $my-fee.\n;
echo $my-blah.\n;

?

Cheers,
Rob.
-- 
http://www.interjinn.com
Application and Templating Framework for PHP


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Re: [PHP] Re: use strict or similar in PHP?

2009-03-01 Thread tedd

At 9:21 AM -0500 3/1/09, Robert Cummings wrote:

On Sun, 2009-03-01 at 08:36 -0500, tedd wrote:

 The OP asked:

 Is there in PHP something like use strict from perl? I find it pretty
 annoying to need to run script over and over again just to find out that I
 made typo in variable name.

 And I've been waiting for an answer myself, but I haven't seen one.

  From what I remember, in perl if you use use strict; it requires to
 to define your variables (my) before using them. If you make a
 variable typo in your code, then you'll trigger an error when you try
 to run it.

  From what I've seen of php, even with using strict error reporting,
 you can do that all day long without generating an error.

 So the answer appears to be No, you can't do that in PHP. Is 
that the answer?


You can do anything you want... :)


Rob:

Just to show that your words of wisdom don't go unnoticed, see here:

http://php1.net/oop/strict/

That's pretty slick.

Now if I only understood WT* you did, I would be a better programmer for it.

Thanks,

tedd

--
---
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Re: [PHP] Re: use strict or similar in PHP?

2009-03-01 Thread Robert Cummings
On Sun, 2009-03-01 at 09:48 -0500, tedd wrote:
 At 9:21 AM -0500 3/1/09, Robert Cummings wrote:
 On Sun, 2009-03-01 at 08:36 -0500, tedd wrote:
   The OP asked:
 
   Is there in PHP something like use strict from perl? I find it pretty
   annoying to need to run script over and over again just to find out that 
  I
   made typo in variable name.
 
   And I've been waiting for an answer myself, but I haven't seen one.
 
From what I remember, in perl if you use use strict; it requires to
   to define your variables (my) before using them. If you make a
   variable typo in your code, then you'll trigger an error when you try
   to run it.
 
From what I've seen of php, even with using strict error reporting,
   you can do that all day long without generating an error.
 
   So the answer appears to be No, you can't do that in PHP. Is 
 that the answer?
 
 You can do anything you want... :)
 
 Rob:
 
 Just to show that your words of wisdom don't go unnoticed, see here:
 
 http://php1.net/oop/strict/
 
 That's pretty slick.
 
 Now if I only understood WT* you did, I would be a better programmer for it.

I used the magic methods __set() and __get() to facilitate error
handling. These methods fire when a property is not accessible. So when
the property does not exist these will fire. So first we init the
properties when we create an instance (I'll discuss this shortly)... to
init them we are setting them, this fires the __set() method... but
since we check the value of the private ___init property, we don't fire
an error in this instance. Future requests for the properties will not
incurr a hit to __set() or __get() as long as the property is defined.
If it is not defined then voila, the error fires and we die (we could do
anything such as fire an exception but I just die for the example).

With respect to initialization I use func_get_args() so that an
arbitrary number of parameters can be passed to the constructor. This is
useful since we don't know the number of properties. I also check if an
argument is an array. If it is an array then I treat it as a property
with an initialized value and create and set the property accordingly.

That's all there is to it.

Cheers,
Rob.
-- 
http://www.interjinn.com
Application and Templating Framework for PHP


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Re: [PHP] Re: use strict or similar in PHP?

2009-03-01 Thread Robert Cummings
On Sun, 2009-03-01 at 09:57 -0500, Robert Cummings wrote:
 On Sun, 2009-03-01 at 09:48 -0500, tedd wrote:
  At 9:21 AM -0500 3/1/09, Robert Cummings wrote:
  On Sun, 2009-03-01 at 08:36 -0500, tedd wrote:
The OP asked:
  
Is there in PHP something like use strict from perl? I find it pretty
annoying to need to run script over and over again just to find out 
   that I
made typo in variable name.
  
And I've been waiting for an answer myself, but I haven't seen one.
  
 From what I remember, in perl if you use use strict; it requires to
to define your variables (my) before using them. If you make a
variable typo in your code, then you'll trigger an error when you try
to run it.
  
 From what I've seen of php, even with using strict error reporting,
you can do that all day long without generating an error.
  
So the answer appears to be No, you can't do that in PHP. Is 
  that the answer?
  
  You can do anything you want... :)
  
  Rob:
  
  Just to show that your words of wisdom don't go unnoticed, see here:
  
  http://php1.net/oop/strict/
  
  That's pretty slick.
  
  Now if I only understood WT* you did, I would be a better programmer for it.
 
 I used the magic methods __set() and __get() to facilitate error
 handling. These methods fire when a property is not accessible. So when
 the property does not exist these will fire. So first we init the
 properties when we create an instance (I'll discuss this shortly)... to
 init them we are setting them, this fires the __set() method... but
 since we check the value of the private ___init property, we don't fire
 an error in this instance. Future requests for the properties will not
 incurr a hit to __set() or __get() as long as the property is defined.
 If it is not defined then voila, the error fires and we die (we could do
 anything such as fire an exception but I just die for the example).
 
 With respect to initialization I use func_get_args() so that an
 arbitrary number of parameters can be passed to the constructor. This is
 useful since we don't know the number of properties. I also check if an
 argument is an array. If it is an array then I treat it as a property
 with an initialized value and create and set the property accordingly.
 
 That's all there is to it.

Oh, I didn't bother, but if someone finds this at all useful, they could
use debug_backtrace() to walk the call stack and output the actual
source file and line number where the illegal property was requested.

Cheers,
Rob.
-- 
http://www.interjinn.com
Application and Templating Framework for PHP


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Re: [PHP] Re: use strict or similar in PHP?

2009-02-28 Thread Robert Cummings
On Sat, 2009-02-28 at 00:11 +, Ashley Sheridan wrote:
 On Fri, 2009-02-27 at 14:32 -0500, Robert Cummings wrote:
  On Sat, 2009-02-28 at 00:02 +0600, 9el wrote:
   ---
   Use FreeOpenSourceSoftwares, Stop piracy, Let the developers live. Get
   a Free CD of Ubuntu mailed to your door without any cost. Visit :
   www.ubuntu.com
   --
   
   
   On Fri, Feb 27, 2009 at 11:46 PM, Robert Cummings 
   rob...@interjinn.comwrote:
   
On Fri, 2009-02-27 at 09:28 -0700, LuKreme wrote:
 On Feb 27, 2009, at 6:12, Hans Schultz h.schult...@yahoo.com wrote:

  Hahahah,I was thinking the same thing

 
 
 
 The trouble is most people mean compile a source file to an
 executable binary when they sat compile. By this measure, PHP does
 not compile.
   
I add the following to the top of my PHP shell scripts:
   
   #!/usr/bin/php -qC
   
Then I do the following:
   
   chmod 775 script.php
   
Then I run it as follows:
   
   ./script.php
   
Look... and executable binary :) Don't say it's not binary. All data on
a hard disk is binary (although I do know what you mean ;)
   
   
   Well you are running shell script style execution its not example of
   Compiled code or Binary
   
   The data in the file is ASCII or UTF text :)
  
  Which are subsets of binary representation ;)
  
   Compilation happens when its zendOptimized or OpCoded. Its then is 
   converted
   into binary content file.
  
  But one could probably quite easily set up a system whereby eAccelerator
  or APC or Zend Optimizer cache bytecodes are torn from a file run
  similarly. As I said in an earlier post... the line between the
  definition of interpreted language and compiled language is quite blurry
  these days.
  
  Cheers,
  Rob.
  -- 
  http://www.interjinn.com
  Application and Templating Framework for PHP
  
  
 ASCII is only a subset of binary in a pedantic, literal sense. When
 people say binary file, they mean one that contains characters which are
 outside the normal display spectrum, such as chr(0), etc.

And the argument that PHP is not compiled requires a certain level of
pedantry and it is still an incorrect argument since it most certainly
is compiled to an intermediary virtual machine code.

Cheers,
Rob.
-- 
http://www.interjinn.com
Application and Templating Framework for PHP


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Re: [PHP] Re: use strict or similar in PHP?

2009-02-28 Thread Shawn McKenzie
Robert Cummings wrote:
 On Sat, 2009-02-28 at 00:11 +, Ashley Sheridan wrote:
 On Fri, 2009-02-27 at 14:32 -0500, Robert Cummings wrote:
 On Sat, 2009-02-28 at 00:02 +0600, 9el wrote:
 ---
 Use FreeOpenSourceSoftwares, Stop piracy, Let the developers live. Get
 a Free CD of Ubuntu mailed to your door without any cost. Visit :
 www.ubuntu.com
 --


 On Fri, Feb 27, 2009 at 11:46 PM, Robert Cummings 
 rob...@interjinn.comwrote:

 On Fri, 2009-02-27 at 09:28 -0700, LuKreme wrote:
 On Feb 27, 2009, at 6:12, Hans Schultz h.schult...@yahoo.com wrote:

 Hahahah,I was thinking the same thing

 The trouble is most people mean compile a source file to an
 executable binary when they sat compile. By this measure, PHP does
 not compile.
 I add the following to the top of my PHP shell scripts:

#!/usr/bin/php -qC

 Then I do the following:

chmod 775 script.php

 Then I run it as follows:

./script.php

 Look... and executable binary :) Don't say it's not binary. All data on
 a hard disk is binary (although I do know what you mean ;)

 Well you are running shell script style execution its not example of
 Compiled code or Binary

 The data in the file is ASCII or UTF text :)
 Which are subsets of binary representation ;)

 Compilation happens when its zendOptimized or OpCoded. Its then is 
 converted
 into binary content file.
 But one could probably quite easily set up a system whereby eAccelerator
 or APC or Zend Optimizer cache bytecodes are torn from a file run
 similarly. As I said in an earlier post... the line between the
 definition of interpreted language and compiled language is quite blurry
 these days.

 Cheers,
 Rob.
 -- 
 http://www.interjinn.com
 Application and Templating Framework for PHP


 ASCII is only a subset of binary in a pedantic, literal sense. When
 people say binary file, they mean one that contains characters which are
 outside the normal display spectrum, such as chr(0), etc.
 
 And the argument that PHP is not compiled requires a certain level of
 pedantry and it is still an incorrect argument since it most certainly
 is compiled to an intermediary virtual machine code.
 
 Cheers,
 Rob.

Still, in PHP $compile_time == $run_time.

-- 
Thanks!
-Shawn
http://www.spidean.com

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Re: [PHP] Re: use strict or similar in PHP?

2009-02-28 Thread Robert Cummings
On Sat, 2009-02-28 at 09:04 -0600, Shawn McKenzie wrote:
 Robert Cummings wrote:
  On Sat, 2009-02-28 at 00:11 +, Ashley Sheridan wrote:
  On Fri, 2009-02-27 at 14:32 -0500, Robert Cummings wrote:
  On Sat, 2009-02-28 at 00:02 +0600, 9el wrote:
  ---
  Use FreeOpenSourceSoftwares, Stop piracy, Let the developers live. Get
  a Free CD of Ubuntu mailed to your door without any cost. Visit :
  www.ubuntu.com
  --
 
 
  On Fri, Feb 27, 2009 at 11:46 PM, Robert Cummings 
  rob...@interjinn.comwrote:
 
  On Fri, 2009-02-27 at 09:28 -0700, LuKreme wrote:
  On Feb 27, 2009, at 6:12, Hans Schultz h.schult...@yahoo.com wrote:
 
  Hahahah,I was thinking the same thing
 
  The trouble is most people mean compile a source file to an
  executable binary when they sat compile. By this measure, PHP does
  not compile.
  I add the following to the top of my PHP shell scripts:
 
 #!/usr/bin/php -qC
 
  Then I do the following:
 
 chmod 775 script.php
 
  Then I run it as follows:
 
 ./script.php
 
  Look... and executable binary :) Don't say it's not binary. All data on
  a hard disk is binary (although I do know what you mean ;)
 
  Well you are running shell script style execution its not example of
  Compiled code or Binary
 
  The data in the file is ASCII or UTF text :)
  Which are subsets of binary representation ;)
 
  Compilation happens when its zendOptimized or OpCoded. Its then is 
  converted
  into binary content file.
  But one could probably quite easily set up a system whereby eAccelerator
  or APC or Zend Optimizer cache bytecodes are torn from a file run
  similarly. As I said in an earlier post... the line between the
  definition of interpreted language and compiled language is quite blurry
  these days.
 
  Cheers,
  Rob.
  -- 
  http://www.interjinn.com
  Application and Templating Framework for PHP
 
 
  ASCII is only a subset of binary in a pedantic, literal sense. When
  people say binary file, they mean one that contains characters which are
  outside the normal display spectrum, such as chr(0), etc.
  
  And the argument that PHP is not compiled requires a certain level of
  pedantry and it is still an incorrect argument since it most certainly
  is compiled to an intermediary virtual machine code.
  
  Cheers,
  Rob.
 
 Still, in PHP $compile_time == $run_time.

No, compile time is usually a fraction of run time. And with a bytecode
cache like eAccelerator or APC then it's not even considerable.

Cheers,
Rob.
-- 
http://www.interjinn.com
Application and Templating Framework for PHP


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Re: [PHP] Re: use strict or similar in PHP?

2009-02-28 Thread Stuart
2009/2/28 Shawn McKenzie nos...@mckenzies.net

 Robert Cummings wrote:
  On Sat, 2009-02-28 at 00:11 +, Ashley Sheridan wrote:
  On Fri, 2009-02-27 at 14:32 -0500, Robert Cummings wrote:
  On Sat, 2009-02-28 at 00:02 +0600, 9el wrote:
 
 ---
  Use FreeOpenSourceSoftwares, Stop piracy, Let the developers live. Get
  a Free CD of Ubuntu mailed to your door without any cost. Visit :
  www.ubuntu.com
  --
 
 
  On Fri, Feb 27, 2009 at 11:46 PM, Robert Cummings 
 rob...@interjinn.comwrote:
 
  On Fri, 2009-02-27 at 09:28 -0700, LuKreme wrote:
  On Feb 27, 2009, at 6:12, Hans Schultz h.schult...@yahoo.com
 wrote:
 
  Hahahah,I was thinking the same thing
 
  The trouble is most people mean compile a source file to an
  executable binary when they sat compile. By this measure, PHP does
  not compile.
  I add the following to the top of my PHP shell scripts:
 
 #!/usr/bin/php -qC
 
  Then I do the following:
 
 chmod 775 script.php
 
  Then I run it as follows:
 
 ./script.php
 
  Look... and executable binary :) Don't say it's not binary. All data
 on
  a hard disk is binary (although I do know what you mean ;)
 
  Well you are running shell script style execution its not example of
  Compiled code or Binary
 
  The data in the file is ASCII or UTF text :)
  Which are subsets of binary representation ;)
 
  Compilation happens when its zendOptimized or OpCoded. Its then is
 converted
  into binary content file.
  But one could probably quite easily set up a system whereby
 eAccelerator
  or APC or Zend Optimizer cache bytecodes are torn from a file run
  similarly. As I said in an earlier post... the line between the
  definition of interpreted language and compiled language is quite
 blurry
  these days.
 
  Cheers,
  Rob.
  --
  http://www.interjinn.com
  Application and Templating Framework for PHP
 
 
  ASCII is only a subset of binary in a pedantic, literal sense. When
  people say binary file, they mean one that contains characters which are
  outside the normal display spectrum, such as chr(0), etc.
 
  And the argument that PHP is not compiled requires a certain level of
  pedantry and it is still an incorrect argument since it most certainly
  is compiled to an intermediary virtual machine code.
 
  Cheers,
  Rob.

 Still, in PHP $compile_time == $run_time.


I haven't been following this thread, but this caught my eye as being
completely wrong. There are distinct compile and execution phases when PHP
runs a script, and different rules apply to each. If you don't believe me
try defaulting the value of a class variable to the result of a function.

-Stuart

-- 
http://stut.net/


Re: [PHP] Re: use strict or similar in PHP?

2009-02-28 Thread Shawn McKenzie
Stuart wrote:
 2009/2/28 Shawn McKenzie nos...@mckenzies.net
 
 Robert Cummings wrote:
 On Sat, 2009-02-28 at 00:11 +, Ashley Sheridan wrote:
 On Fri, 2009-02-27 at 14:32 -0500, Robert Cummings wrote:
 On Sat, 2009-02-28 at 00:02 +0600, 9el wrote:
 ---
 Use FreeOpenSourceSoftwares, Stop piracy, Let the developers live. Get
 a Free CD of Ubuntu mailed to your door without any cost. Visit :
 www.ubuntu.com
 --


 On Fri, Feb 27, 2009 at 11:46 PM, Robert Cummings 
 rob...@interjinn.comwrote:
 On Fri, 2009-02-27 at 09:28 -0700, LuKreme wrote:
 On Feb 27, 2009, at 6:12, Hans Schultz h.schult...@yahoo.com
 wrote:
 Hahahah,I was thinking the same thing
 The trouble is most people mean compile a source file to an
 executable binary when they sat compile. By this measure, PHP does
 not compile.
 I add the following to the top of my PHP shell scripts:

#!/usr/bin/php -qC

 Then I do the following:

chmod 775 script.php

 Then I run it as follows:

./script.php

 Look... and executable binary :) Don't say it's not binary. All data
 on
 a hard disk is binary (although I do know what you mean ;)
 Well you are running shell script style execution its not example of
 Compiled code or Binary

 The data in the file is ASCII or UTF text :)
 Which are subsets of binary representation ;)

 Compilation happens when its zendOptimized or OpCoded. Its then is
 converted
 into binary content file.
 But one could probably quite easily set up a system whereby
 eAccelerator
 or APC or Zend Optimizer cache bytecodes are torn from a file run
 similarly. As I said in an earlier post... the line between the
 definition of interpreted language and compiled language is quite
 blurry
 these days.

 Cheers,
 Rob.
 --
 http://www.interjinn.com
 Application and Templating Framework for PHP


 ASCII is only a subset of binary in a pedantic, literal sense. When
 people say binary file, they mean one that contains characters which are
 outside the normal display spectrum, such as chr(0), etc.
 And the argument that PHP is not compiled requires a certain level of
 pedantry and it is still an incorrect argument since it most certainly
 is compiled to an intermediary virtual machine code.

 Cheers,
 Rob.
 Still, in PHP $compile_time == $run_time.
 
 
 I haven't been following this thread, but this caught my eye as being
 completely wrong. There are distinct compile and execution phases when PHP
 runs a script, and different rules apply to each. If you don't believe me
 try defaulting the value of a class variable to the result of a function.
 
 -Stuart
 
Rob, I wasn't talking about time.  I was talking about they're pretty
much the same as in when they execute.

Stuart,

Great, then show the OP how he can enforce strict error checking at
compile time and halt compilation and runtime altogether.

-- 
Thanks!
-Shawn
http://www.spidean.com

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Re: [PHP] Re: use strict or similar in PHP?

2009-02-28 Thread Stuart
2009/3/1 Shawn McKenzie nos...@mckenzies.net

 Stuart wrote:
  2009/2/28 Shawn McKenzie nos...@mckenzies.net
 
  Robert Cummings wrote:
  On Sat, 2009-02-28 at 00:11 +, Ashley Sheridan wrote:
  On Fri, 2009-02-27 at 14:32 -0500, Robert Cummings wrote:
  On Sat, 2009-02-28 at 00:02 +0600, 9el wrote:
  ---
  Use FreeOpenSourceSoftwares, Stop piracy, Let the developers live.
 Get
  a Free CD of Ubuntu mailed to your door without any cost. Visit :
  www.ubuntu.com
 
 --
 
 
  On Fri, Feb 27, 2009 at 11:46 PM, Robert Cummings 
  rob...@interjinn.comwrote:
  On Fri, 2009-02-27 at 09:28 -0700, LuKreme wrote:
  On Feb 27, 2009, at 6:12, Hans Schultz h.schult...@yahoo.com
  wrote:
  Hahahah,I was thinking the same thing
  The trouble is most people mean compile a source file to an
  executable binary when they sat compile. By this measure, PHP
 does
  not compile.
  I add the following to the top of my PHP shell scripts:
 
 #!/usr/bin/php -qC
 
  Then I do the following:
 
 chmod 775 script.php
 
  Then I run it as follows:
 
 ./script.php
 
  Look... and executable binary :) Don't say it's not binary. All
 data
  on
  a hard disk is binary (although I do know what you mean ;)
  Well you are running shell script style execution its not example of
  Compiled code or Binary
 
  The data in the file is ASCII or UTF text :)
  Which are subsets of binary representation ;)
 
  Compilation happens when its zendOptimized or OpCoded. Its then is
  converted
  into binary content file.
  But one could probably quite easily set up a system whereby
  eAccelerator
  or APC or Zend Optimizer cache bytecodes are torn from a file run
  similarly. As I said in an earlier post... the line between the
  definition of interpreted language and compiled language is quite
  blurry
  these days.
 
  Cheers,
  Rob.
  --
  http://www.interjinn.com
  Application and Templating Framework for PHP
 
 
  ASCII is only a subset of binary in a pedantic, literal sense. When
  people say binary file, they mean one that contains characters which
 are
  outside the normal display spectrum, such as chr(0), etc.
  And the argument that PHP is not compiled requires a certain level of
  pedantry and it is still an incorrect argument since it most certainly
  is compiled to an intermediary virtual machine code.
 
  Cheers,
  Rob.
  Still, in PHP $compile_time == $run_time.
 
 
  I haven't been following this thread, but this caught my eye as being
  completely wrong. There are distinct compile and execution phases when
 PHP
  runs a script, and different rules apply to each. If you don't believe me
  try defaulting the value of a class variable to the result of a function.
 
  -Stuart
 
 Rob, I wasn't talking about time.  I was talking about they're pretty
 much the same as in when they execute.

 Stuart,

 Great, then show the OP how he can enforce strict error checking at
 compile time and halt compilation and runtime altogether.


Like I said I haven't been following this thread so have no idea what the
original question was. I was just pointing out that your assertion
that $compile_time == $run_time is incorrect.

As far as error checking goes the PHP engine performs syntactical checks
during compile time but due to the highly flexible nature of the language
it's not possible to do most error checking until runtime.

-Stuart

-- 
http://stut.net/


Re: [PHP] Re: use strict or similar in PHP?

2009-02-28 Thread Shawn McKenzie
Stuart wrote:
 2009/3/1 Shawn McKenzie nos...@mckenzies.net
 
 Stuart wrote:
 2009/2/28 Shawn McKenzie nos...@mckenzies.net

 Robert Cummings wrote:
 On Sat, 2009-02-28 at 00:11 +, Ashley Sheridan wrote:
 On Fri, 2009-02-27 at 14:32 -0500, Robert Cummings wrote:
 On Sat, 2009-02-28 at 00:02 +0600, 9el wrote:
 ---
 Use FreeOpenSourceSoftwares, Stop piracy, Let the developers live.
 Get
 a Free CD of Ubuntu mailed to your door without any cost. Visit :
 www.ubuntu.com

 --

 On Fri, Feb 27, 2009 at 11:46 PM, Robert Cummings 
 rob...@interjinn.comwrote:
 On Fri, 2009-02-27 at 09:28 -0700, LuKreme wrote:
 On Feb 27, 2009, at 6:12, Hans Schultz h.schult...@yahoo.com
 wrote:
 Hahahah,I was thinking the same thing
 The trouble is most people mean compile a source file to an
 executable binary when they sat compile. By this measure, PHP
 does
 not compile.
 I add the following to the top of my PHP shell scripts:

#!/usr/bin/php -qC

 Then I do the following:

chmod 775 script.php

 Then I run it as follows:

./script.php

 Look... and executable binary :) Don't say it's not binary. All
 data
 on
 a hard disk is binary (although I do know what you mean ;)
 Well you are running shell script style execution its not example of
 Compiled code or Binary

 The data in the file is ASCII or UTF text :)
 Which are subsets of binary representation ;)

 Compilation happens when its zendOptimized or OpCoded. Its then is
 converted
 into binary content file.
 But one could probably quite easily set up a system whereby
 eAccelerator
 or APC or Zend Optimizer cache bytecodes are torn from a file run
 similarly. As I said in an earlier post... the line between the
 definition of interpreted language and compiled language is quite
 blurry
 these days.

 Cheers,
 Rob.
 --
 http://www.interjinn.com
 Application and Templating Framework for PHP


 ASCII is only a subset of binary in a pedantic, literal sense. When
 people say binary file, they mean one that contains characters which
 are
 outside the normal display spectrum, such as chr(0), etc.
 And the argument that PHP is not compiled requires a certain level of
 pedantry and it is still an incorrect argument since it most certainly
 is compiled to an intermediary virtual machine code.

 Cheers,
 Rob.
 Still, in PHP $compile_time == $run_time.

 I haven't been following this thread, but this caught my eye as being
 completely wrong. There are distinct compile and execution phases when
 PHP
 runs a script, and different rules apply to each. If you don't believe me
 try defaulting the value of a class variable to the result of a function.

 -Stuart

 Rob, I wasn't talking about time.  I was talking about they're pretty
 much the same as in when they execute.

 Stuart,

 Great, then show the OP how he can enforce strict error checking at
 compile time and halt compilation and runtime altogether.
 
 
 Like I said I haven't been following this thread so have no idea what the
 original question was. I was just pointing out that your assertion
 that $compile_time == $run_time is incorrect.
 
 As far as error checking goes the PHP engine performs syntactical checks
 during compile time but due to the highly flexible nature of the language
 it's not possible to do most error checking until runtime.
 
 -Stuart
 

Unfortuantely, my post was in reference to the OP's question and related
to other posts in the thread.  :-)

-- 
Thanks!
-Shawn
http://www.spidean.com

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Re: [PHP] Re: use strict or similar in PHP?

2009-02-28 Thread Michael A. Peters

Stuart wrote:



As far as error checking goes the PHP engine performs syntactical checks
during compile time but due to the highly flexible nature of the language
it's not possible to do most error checking until runtime.


I don't know (or care) how to do it but I suspect that if you put all 
output into a buffer or object (ala DOMDocument class) you could refuse 
to print the document to the requesting client if any errors were thrown 
during the creation of the document.


DOMDocument sure makes (at least for me) code easier to read because you 
aren't mixing html and php.


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[PHP] Re: use strict or similar in PHP?

2009-02-27 Thread Peter Ford
Hans Schultz wrote:

 Is there in PHP something like use strict from perl? I find it pretty
 annoying to need to run script over and over again just to find out that I
 made typo in variable name.

I find that my IDE catches most of the typos before I even try to run the page.
I use Netbeans 6.5 with the PHP extension, but there are alternatives...

 Is there some way for PHP to cache some data on the page? I like very much
 PHP's speed but it would be even better to be able to cache some frequently
 used data from database?

Generally it's not worth the trouble, but you could cache in the session...
Remember that PHP is largely stateless, so one page call knows nothing of any
other page calls. This is different to Java, where you can hold state in the
underlying virtual machine and recover it later...

 Also regarding databases, I liked a lot java's way of sending data to
 database
 using parameters (select * from user where username = ? and then passing
 parameter separately with database doing necessary escaping and
 everything).
 Is there something like PHPDBC similar to JDBC?

With PostgreSQL (and probably MySQL too) you can do either a prepared statement
(see http://www.php.net/manual/en/function.pg-prepare.php) and then execute
that, or a simpler parameterised query (see
http://www.php.net/manual/en/function.pg-query-params.php)
Something like

$sql = 'SELECT * FROM user WHERE username=$1';
$params = Array('pete');
$result = pg_query_params($sql,$params);

That way you get the safest handling of values without any tedious messing about
with manually escaping strings.
I suspect that under the hood it actually prepares a statement and then executes
it, but I might be wrong...


-- 
Peter Ford  phone: 01580 89
Developer   fax:   01580 893399
Justcroft International Ltd., Staplehurst, Kent

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[PHP] Re: use strict or similar in PHP?

2009-02-27 Thread Hans Schultz
Thanks, this is the most useful answer I got. I will try to use that IDE  
and to see if it works for me.
Regarding databases I was hopping for some abstraction layer like dbx only  
better (to allow parameters).


Regards,
Hans

On Fri, 27 Feb 2009 15:41:55 +0100, Peter Ford p...@justcroft.com wrote:


Hans Schultz wrote:


Is there in PHP something like use strict from perl? I find it pretty
annoying to need to run script over and over again just to find out  
that I

made typo in variable name.


I find that my IDE catches most of the typos before I even try to run  
the page.

I use Netbeans 6.5 with the PHP extension, but there are alternatives...

Is there some way for PHP to cache some data on the page? I like very  
much
PHP's speed but it would be even better to be able to cache some  
frequently

used data from database?


Generally it's not worth the trouble, but you could cache in the  
session...
Remember that PHP is largely stateless, so one page call knows nothing  
of any
other page calls. This is different to Java, where you can hold state in  
the

underlying virtual machine and recover it later...


Also regarding databases, I liked a lot java's way of sending data to
database
using parameters (select * from user where username = ? and then  
passing

parameter separately with database doing necessary escaping and
everything).
Is there something like PHPDBC similar to JDBC?


With PostgreSQL (and probably MySQL too) you can do either a prepared  
statement
(see http://www.php.net/manual/en/function.pg-prepare.php) and then  
execute

that, or a simpler parameterised query (see
http://www.php.net/manual/en/function.pg-query-params.php)
Something like

$sql = 'SELECT * FROM user WHERE username=$1';
$params = Array('pete');
$result = pg_query_params($sql,$params);

That way you get the safest handling of values without any tedious  
messing about

with manually escaping strings.
I suspect that under the hood it actually prepares a statement and then  
executes

it, but I might be wrong...






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[PHP] Re: use strict or similar in PHP?

2009-02-27 Thread LuKreme

On Feb 27, 2009, at 6:12, Hans Schultz h.schult...@yahoo.com wrote:


Hahahah,I was thinking the same thing







The trouble is most people mean compile a source file to an  
executable binary when they sat compile. By this measure, PHP does  
not compile.



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Re: [PHP] Re: use strict or similar in PHP?

2009-02-27 Thread Robert Cummings
On Fri, 2009-02-27 at 09:28 -0700, LuKreme wrote:
 On Feb 27, 2009, at 6:12, Hans Schultz h.schult...@yahoo.com wrote:
 
  Hahahah,I was thinking the same thing
 
 
 
 
 The trouble is most people mean compile a source file to an  
 executable binary when they sat compile. By this measure, PHP does  
 not compile.

I add the following to the top of my PHP shell scripts:

#!/usr/bin/php -qC

Then I do the following:

chmod 775 script.php

Then I run it as follows:

./script.php

Look... and executable binary :) Don't say it's not binary. All data on
a hard disk is binary (although I do know what you mean ;)

Cheers,
Rob.
-- 
http://www.interjinn.com
Application and Templating Framework for PHP


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Re: [PHP] Re: use strict or similar in PHP?

2009-02-27 Thread 9el
---
Use FreeOpenSourceSoftwares, Stop piracy, Let the developers live. Get
a Free CD of Ubuntu mailed to your door without any cost. Visit :
www.ubuntu.com
--


On Fri, Feb 27, 2009 at 11:46 PM, Robert Cummings rob...@interjinn.comwrote:

 On Fri, 2009-02-27 at 09:28 -0700, LuKreme wrote:
  On Feb 27, 2009, at 6:12, Hans Schultz h.schult...@yahoo.com wrote:
 
   Hahahah,I was thinking the same thing
 
  
  
  
  The trouble is most people mean compile a source file to an
  executable binary when they sat compile. By this measure, PHP does
  not compile.

 I add the following to the top of my PHP shell scripts:

#!/usr/bin/php -qC

 Then I do the following:

chmod 775 script.php

 Then I run it as follows:

./script.php

 Look... and executable binary :) Don't say it's not binary. All data on
 a hard disk is binary (although I do know what you mean ;)


Well you are running shell script style execution its not example of
Compiled code or Binary

The data in the file is ASCII or UTF text :)

Compilation happens when its zendOptimized or OpCoded. Its then is converted
into binary content file.



 Cheers,
 Rob.
 --
 http://www.interjinn.com
 Application and Templating Framework for PHP


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Re: [PHP] Re: use strict or similar in PHP?

2009-02-27 Thread Robert Cummings
On Sat, 2009-02-28 at 00:02 +0600, 9el wrote:
 ---
 Use FreeOpenSourceSoftwares, Stop piracy, Let the developers live. Get
 a Free CD of Ubuntu mailed to your door without any cost. Visit :
 www.ubuntu.com
 --
 
 
 On Fri, Feb 27, 2009 at 11:46 PM, Robert Cummings rob...@interjinn.comwrote:
 
  On Fri, 2009-02-27 at 09:28 -0700, LuKreme wrote:
   On Feb 27, 2009, at 6:12, Hans Schultz h.schult...@yahoo.com wrote:
  
Hahahah,I was thinking the same thing
  
   
   
   
   The trouble is most people mean compile a source file to an
   executable binary when they sat compile. By this measure, PHP does
   not compile.
 
  I add the following to the top of my PHP shell scripts:
 
 #!/usr/bin/php -qC
 
  Then I do the following:
 
 chmod 775 script.php
 
  Then I run it as follows:
 
 ./script.php
 
  Look... and executable binary :) Don't say it's not binary. All data on
  a hard disk is binary (although I do know what you mean ;)
 
 
 Well you are running shell script style execution its not example of
 Compiled code or Binary
 
 The data in the file is ASCII or UTF text :)

Which are subsets of binary representation ;)

 Compilation happens when its zendOptimized or OpCoded. Its then is converted
 into binary content file.

But one could probably quite easily set up a system whereby eAccelerator
or APC or Zend Optimizer cache bytecodes are torn from a file run
similarly. As I said in an earlier post... the line between the
definition of interpreted language and compiled language is quite blurry
these days.

Cheers,
Rob.
-- 
http://www.interjinn.com
Application and Templating Framework for PHP


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Re: [PHP] Re: use strict or similar in PHP?

2009-02-27 Thread Michael A. Peters

Robert Cummings wrote:
... the line between the

definition of interpreted language and compiled language is quite blurry
these days.


#includestdio.h
main()
{
printf(Hello World);
}

Compile that - and you can run it on any system that is binary 
compatible, whether or not is has a C compiler.


However, it will not run on systems that are not binary compatible, even 
if they have a C compiler.


?php
print (Hello World);
?

That will only run on systems with a php interpreter, even if you 
compile it into byte-code.


However, unlike the c example, it will run on any system with a php 
interpreter.


Nothing fuzzy about it.

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Re: [PHP] Re: use strict or similar in PHP?

2009-02-27 Thread Robert Cummings
On Fri, 2009-02-27 at 14:32 -0800, Michael A. Peters wrote:
 Robert Cummings wrote:
 ... the line between the
  definition of interpreted language and compiled language is quite blurry
  these days.
 
 #includestdio.h
 main()
 {
  printf(Hello World);
 }
 
 Compile that - and you can run it on any system that is binary 
 compatible, whether or not is has a C compiler.
 
 However, it will not run on systems that are not binary compatible, even 
 if they have a C compiler.
 
 ?php
 print (Hello World);
 ?
 
 That will only run on systems with a php interpreter, even if you 
 compile it into byte-code.
 
 However, unlike the c example, it will run on any system with a php 
 interpreter.
 
 Nothing fuzzy about it.

This is not the litmus test for compiled versus interpreted languages.

http://en.wikipedia.org/wiki/Compiled_language

Cheers,
Rob.
-- 
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Application and Templating Framework for PHP


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Re: [PHP] Re: use strict or similar in PHP?

2009-02-27 Thread sbeam
On Friday 27 February 2009 10:56, Hans Schultz wrote:
 Regarding databases I was hopping for some abstraction layer like dbx only
   better (to allow parameters).

I encourage you to use a database abstraction layer that gives you this and 
many other features you may be used to from JDBC 

MDB2 and PDO are the most current and popular

http://pear.php.net/manual/en/package.database.mdb2.intro-execute.php

http://us.php.net/manual/en/pdo.prepared-statements.php

enjoy,
Sam

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Re: [PHP] Re: use strict or similar in PHP?

2009-02-27 Thread Ashley Sheridan
On Fri, 2009-02-27 at 14:32 -0500, Robert Cummings wrote:
 On Sat, 2009-02-28 at 00:02 +0600, 9el wrote:
  ---
  Use FreeOpenSourceSoftwares, Stop piracy, Let the developers live. Get
  a Free CD of Ubuntu mailed to your door without any cost. Visit :
  www.ubuntu.com
  --
  
  
  On Fri, Feb 27, 2009 at 11:46 PM, Robert Cummings 
  rob...@interjinn.comwrote:
  
   On Fri, 2009-02-27 at 09:28 -0700, LuKreme wrote:
On Feb 27, 2009, at 6:12, Hans Schultz h.schult...@yahoo.com wrote:
   
 Hahahah,I was thinking the same thing
   



The trouble is most people mean compile a source file to an
executable binary when they sat compile. By this measure, PHP does
not compile.
  
   I add the following to the top of my PHP shell scripts:
  
  #!/usr/bin/php -qC
  
   Then I do the following:
  
  chmod 775 script.php
  
   Then I run it as follows:
  
  ./script.php
  
   Look... and executable binary :) Don't say it's not binary. All data on
   a hard disk is binary (although I do know what you mean ;)
  
  
  Well you are running shell script style execution its not example of
  Compiled code or Binary
  
  The data in the file is ASCII or UTF text :)
 
 Which are subsets of binary representation ;)
 
  Compilation happens when its zendOptimized or OpCoded. Its then is converted
  into binary content file.
 
 But one could probably quite easily set up a system whereby eAccelerator
 or APC or Zend Optimizer cache bytecodes are torn from a file run
 similarly. As I said in an earlier post... the line between the
 definition of interpreted language and compiled language is quite blurry
 these days.
 
 Cheers,
 Rob.
 -- 
 http://www.interjinn.com
 Application and Templating Framework for PHP
 
 
ASCII is only a subset of binary in a pedantic, literal sense. When
people say binary file, they mean one that contains characters which are
outside the normal display spectrum, such as chr(0), etc.


Ash
www.ashleysheridan.co.uk


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