[PHP] Re: array_pop() with key-value pair ???

[Mikey]

I guess you have tried foreach?

foreach ($array as $key = $value) {
...
}

Mikey


Eli wrote:
More over.. PHP seems to be quiet slow when dealing with array_shift() 
array_unshift(), but it is much faster with array_pop() array_push(). I 
am not familiar with the PHP internals, but why not add a pointer to the 
 start and end of the array?


Good word can be said on PHP that accelerated at least count() function..

Maybe I require too much.. PHP is a rapid development scripting 
language.. not a massive optimized programming language.. :-/




Eli wrote:

Hi,

Why isn't there a function that acts like array_pop() returns a pair 
of key-value rather than the value only ?


Reason is, that in order to pop the key-value pair, you do:
?php
$arr = array('a'=1,'b'=2,'c'=3,'d'=4);
$arr_keys = array_keys($arr);
$key = array_pop($arr_keys);
$value = $arr[$key];
?

I benchmarked array_keys() function and it is very slow on big arrays 
since PHP has to build the array. While array_pop() can be acceleraed 
by the guts of PHP engine.


-thanks


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[PHP] Re: array_pop() with key-value pair ???

[Eli]

Mikey wrote:

I guess you have tried foreach?

foreach ($array as $key = $value) {
...
}


No.. loop should not be necessary when you want to take only the first 
or the last element in the array.
Better using array_pop() array_shift() reset() end() and each() 
functions for better run times.


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[PHP] Re: array_pop() with key-value pair ???

[Eli]

More over.. PHP seems to be quiet slow when dealing with array_shift() 
array_unshift(), but it is much faster with array_pop() array_push(). I 
am not familiar with the PHP internals, but why not add a pointer to the 
 start and end of the array?


Good word can be said on PHP that accelerated at least count() function..

Maybe I require too much.. PHP is a rapid development scripting 
language.. not a massive optimized programming language.. :-/




Eli wrote:

Hi,

Why isn't there a function that acts like array_pop() returns a pair of 
key-value rather than the value only ?


Reason is, that in order to pop the key-value pair, you do:
?php
$arr = array('a'=1,'b'=2,'c'=3,'d'=4);
$arr_keys = array_keys($arr);
$key = array_pop($arr_keys);
$value = $arr[$key];
?

I benchmarked array_keys() function and it is very slow on big arrays 
since PHP has to build the array. While array_pop() can be acceleraed by 
the guts of PHP engine.


-thanks


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PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php