Usage of call_user_func_array callback function in PHP

This article mainly introduces the usage of the call_user_func_array callback function in PHP. The article gives detailed example code. I believe it is helpful for everyone's understanding and learning. Friends in need can refer to it. Below Let’s learn together.

call_user_func_array

call_user_func_array— Call the callback function and pass an array parameter as the parameter of the callback function

mixed call_user_func_array ( callable $callback , array $param_arr )

Call the first parameter as the callback function (callback), and pass in the parameter array (param_arr) as the parameter of the callback function.

Example:

function foobar($arg, $arg2) { echo __FUNCTION__, " got $arg and $arg2\n"; } class foo { function bar($arg, $arg2) { echo __METHOD__, " got $arg and $arg2\n"; } } // Call the foobar() function with 2 arguments call_user_func_array("foobar", array("one", "two")); dump("
"); // Call the $foo->bar() method with 2 arguments $foo = new foo; call_user_func_array(array($foo, "bar"), array("three", "four"));

Output result:

foobar got one and two foo::bar got three and four

The above is the entire content of this article, I hope it will be helpful to everyone's study.

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