call_user_func_array
(PHP 4 >= 4.0.4, PHP 5)
call_user_func_array — Call a user function given with an array of parameters
说明
mixed call_user_func_array
( callback $function
, array $param_arr
)
Call a user defined function with the parameters in param_arr .
参数
- function
-
The function to be called.
- param_arr
-
The parameters to be passed to the function, as an indexed array.
返回值
Returns the function result, or FALSE on error.
范例
Example#1 call_user_func_array() example
<?php
function debug($var, $val)
{
echo "***DEBUGGING\nVARIABLE: $var\nVALUE:";
if (is_array($val) || is_object($val) || is_resource($val)) {
print_r($val);
} else {
echo "\n$val\n";
}
echo "***\n";
}
$c = mysql_connect();
$host = $_SERVER["SERVER_NAME"];
call_user_func_array('debug', array("host", $host));
call_user_func_array('debug', array("c", $c));
call_user_func_array('debug', array("_POST", $_POST));
?>
注释
Note: Referenced variables in param_arr are passed to the function by a reference, others are passed by a value. In other words, it does not depend on the function signature whether the parameter is passed by a value or by a reference.
CDN