PHP中call_user_func_array()函數的用法演示

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
Description
mixed call_user_func_array ( callback function, array param_arr )

Call a user defined function given by function, with the parameters in param_arr. For example:

例子 1. call_user_func_array() example
復制代碼 代碼如下:
<?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));
?>

復制代碼 代碼如下:
<?php
function test($str) {
echo $str;
}

call_user_func_array("test","NO.1 www.chhua.com");//輸出"NO.1 www.chhua.com"
//參數說明“第一個參數是函數名，第二個是參數
class testClass {
public function write($str){
echo $str;
}
}
call_user_func_array(array(testClass,write),"NO.1 www.chhua.com");//用類調用的時侯，用array()，array(類名，方法名)
?>