Re: [PHP] What am I not understanding about $GLOBALS['myvar'] vs global $myvar?
At 09:24 27.03.2003, Marek Kilimajer said:
[snip]
echo GLOBALS['$key'] = $valuebr\n;
is right because $key is in double quotes (the outermost qoutes)
[snip]
...almost... the array deref should be in curly quotes then:
echo {GLOBALS['$key']} = $valuebr\n;
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O Ernest E. Vogelsinger
(\)ICQ #13394035
^ http://www.vogelsinger.at/
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Re: [PHP] What am I not understanding about $GLOBALS['myvar'] vs global $myvar?
At 09:46 27.03.2003, Marek Kilimajer said: [snip] there is no $ in front of GLOBALS ;) [snip] right you are - I noticed it as soon as the message was out... sometimes one's too fast hitting the send button ;-) -- O Ernest E. Vogelsinger (\)ICQ #13394035 ^ http://www.vogelsinger.at/ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] What am I not understanding about $GLOBALS['myvar'] vs global $myvar?
How come this function works, but the one below does not??
function clearContactVars()
{
global $contact_id; $contact_id = ;
global $contact_timestamp;$contact_timestamp = ;
global $contact_incept; $contact_incept = ;
global $contact_dept_table_id;$contact_dept_table_id = ;
global $contact_fname;$contact_fname = ;
global $contact_lname;$contact_lname = ;
global $contact_title;$contact_title = ;
global $contact_phone;$contact_phone = ;
global $contact_email;$contact_email = ;
global $contact_address1; $contact_address1 = ;
global $contact_address2; $contact_address2 = ;
global $contact_city; $contact_city = ;
global $contact_state;$contact_state = ;
global $contact_zip; $contact_zip = ;
global $contact_country; $contact_country = ;
global $contact_notes;$contact_notes = ;
}
This one does NOT work the way I would expect it to?
function clearContactVars()
{
foreach ($GLOBALS as $key = $value) {
if ( substr($key,0,8) == contact_ ) {
//echo GLOBALS['$key'] = $valuebr\n;
$GLOBALS['$key'] = ;
}
}
clearPostVars();
}
(this is located in an require() file and do I even need to do this?):
function clearPostVars()
{
foreach ($_POST as $key = $value) {
//echo _POST['$key'] = Value: $valuebr\n;
$_POST['$key'] = ;
}
}
I use these variables on a web page like so:
TR
TD ALIGN=RIGHTBPhone:/B/TD
TDINPUT Name=contact_phone Value=?=$contact_phone?/TD
/TR
So after a successful insert/update/whatever, I need to clear the fields.
The only other relevant part is that at the top of each page in a require()
file, I have this:
reset ($_POST);
while (list ($key, $val) = each ($_POST)) {
//echo $key = $valbr\n;
$$key = $val;
}
But it doesn't make sence to me that the first function does in fact clear
the variables, when the second one does not. I thought that would be even
more direct, since global $contact_id from what I read is only a reference
to the global variable named $contact_id. Which in effect should be exactly
$GLOBALS['contact_id'] right?
http://www.php.net/manual/tw/migration4.variables.php
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RE: [PHP] What am I not understanding about $GLOBALS['myvar'] vs global $myvar?
Actually I didn't. ;-)
$GLOBALS[$key] is incorrect and depricated AFAIK.
$GLOBALS['$key'] (with the single quotes) is the proper way to write these
types of associative arrays/hashs.
For shits and giggles however I tried your way and it made no difference to
the code. Still didn't work right.
-Original Message-
From: Marek Kilimajer [mailto:[EMAIL PROTECTED]
Sent: Wednesday, March 26, 2003 1:16 PM
To: Daevid Vincent
Cc: [EMAIL PROTECTED]
Subject: Re: [PHP] What am I not understanding about
$GLOBALS['myvar'] vs global $myvar?
Daevid Vincent wrote:
This one does NOT work the way I would expect it to?
function clearContactVars()
{
foreach ($GLOBALS as $key = $value) {
if ( substr($key,0,8) == contact_ ) {
//echo GLOBALS['$key'] = $valuebr\n;
$GLOBALS['$key'] = ;
I did not read your whole message, but you very likely mean
$GLOBALS[$key] = ;
(no single quotes)
}
}
clearPostVars();
}
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RE: [PHP] What am I not understanding about $GLOBALS['myvar'] vs global $myvar?
I think you either want to use no quotes or double quotes, but not single quotes. Double quotes will interpolate the variable, single quotes will not, i.e. $key becomes a string literal rather than a variable. No quotes will work, although the docs seem to indicate it is deprecated syntax. Not everyone agrees that it is deprecated, though ;) Kirk $GLOBALS[$key] is incorrect and depricated AFAIK. $GLOBALS['$key'] (with the single quotes) is the proper way to write these types of associative arrays/hashs. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] What am I not understanding about $GLOBALS['myvar'] vs global $myvar?
Actually I didn't. ;-) $GLOBALS[$key] is incorrect and depricated AFAIK. $GLOBALS['$key'] (with the single quotes) is the proper way to write these Wouldn't it need to be $GLOBALS[$key] because single quotes tell the parser not to expand variables? I think you are misinterpreting the part of the manual that says You should always use quotes around an associative array index. Even though a variable may contain a string it is not a string and therefore does not need quoting because there is not danger of it being interpreted as a constant. Look at the manual page on arrays, it shows arrays with variable indices without quotes. http://www.php.net/manual/en/language.types.array.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] What am I not understanding about $GLOBALS['myvar'] vs global $myvar?
No, you misunderstand. The key is simply a string. Just as print foo; is wrong, $array[foo] is wrong (unless foo is a constant, of course). If you do print '$variable';, it will print the literal string $variable. It will not print the value of $variable. You should either use double quotes or no quotes. Johnson, Kirk wrote: I think you either want to use no quotes or double quotes, but not single quotes. Double quotes will interpolate the variable, single quotes will not, i.e. $key becomes a string literal rather than a variable. No quotes will work, although the docs seem to indicate it is deprecated syntax. Not everyone agrees that it is deprecated, though ;) Kirk $GLOBALS[$key] is incorrect and depricated AFAIK. $GLOBALS['$key'] (with the single quotes) is the proper way to write these types of associative arrays/hashs. -- The above message is encrypted with double rot13 encoding. Any unauthorized attempt to decrypt it will be prosecuted to the full extent of the law.
