note 97890 added to functions.arguments
| From: | rburnap at intelligentdashimaging dot com | Date: | Fri, 14 May 2010 00:19:17 +0000 |
| Subject: | note 97890 added to functions.arguments | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-169228@lists.php.net to get a copy of this message | ||
This may be helpful when you need to call an arbitrary function known only at runtime:
You can call a function as a variable name.
<?php
function foo(){
echo"\nfoo()";
}
function callfunc($x, $y = '')
{
if( $y=='' )
{
if( $x=='' )
echo "\nempty";
else $x();
}
else
$y->$x();
}
class cbar {
public function fcatch(){ echo "\nfcatch"; }
}
$x = '';
callfunc($x);
$x = 'foo';
callfunc($x);
$o = new cbar();
$x = 'fcatch';
callfunc($x, $o);
echo "\n\n";
?>
The code will output
empty
foo()
fcatch
----
Server IP: 69.147.83.197
Probable Submitter: 174.29.159.128
----
Manual Page -- http://www.php.net/manual/en/functions.arguments.php
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