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about a piece of code from drupal 3.0.x
| about a piece of code from drupal 3.0.x [message #175954] |
Thu, 10 November 2011 10:29 |
zhang yun
Messages: 3
Registered: July 2011
Karma: 0
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Junior Member |
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hi all
i don't understand this function .if someone help me explain it ,i
would appreciate
the code:
// invoke hook $hook of module $name with optional arguments:
function module_invoke($name, $hook, $a1 = NULL, $a2 = NULL) {
$function = $name ."_". $hook;
if (function_exists($function)) {
return $function($a1, $a2);
}
}
what is it would return ? why write $function( $a1 , $a2);?
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