note 85203 added to language.variables.scope
| From: | ddarjany at yahoo dot com | Date: | Wed, 20 Aug 2008 03:15:02 +0000 |
| Subject: | note 85203 added to language.variables.scope | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-143666@lists.php.net to get a copy of this message | ||
Note that if you declare a variable in a function, then set it as global in that function, its value
will not be retained outside of that function. This was tripping me up for a while so I thought it
would be worth noting.
<?PHP
foo();
echo $a; // echoes nothing
bar();
echo $b; //echoes "b";
function foo() {
$a = "a";
global $a;
}
function bar() {
global $b;
$b = "b";
}
?>
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Server IP: 208.69.120.35
Probable Submitter: 71.109.251.34
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Manual Page -- http://www.php.net/manual/en/language.variables.scope.php
Edit -- https://master.php.net/note/edit/85203
Del: integrated -- https://master.php.net/note/delete/85203/integrated
Del: useless -- https://master.php.net/note/delete/85203/useless
Del: bad code -- https://master.php.net/note/delete/85203/bad+code
Del: spam -- https://master.php.net/note/delete/85203/spam
Del: non-english -- https://master.php.net/note/delete/85203/non-english
Del: in docs -- https://master.php.net/note/delete/85203/in+docs
Del: other reasons-- https://master.php.net/note/delete/85203
Reject -- https://master.php.net/note/reject/85203
Search -- https://master.php.net/manage/user-notes.php