php里array_work用法实例分析

本文实例讲述了php里array_work用法。分享给大家供大家参考。具体如下：

// the test array

$array = array(

'php', 'arrays', 'are', 'cool'

);

// some variable for testing:

$some_var = 'NEW';

// the function that get's called for each entry

function format_array_values(&$item, $key, $some_var) {

$item = $some_var . ": $item (KEY: $key)
";

}

// "walk" trough each array item and call the function:

// "format_array_values"

array_walk($array, 'format_array_values', $some_var);

// print the result:

print_r($array);

/*

The output will be:

Array

(

[0] => NEW: php (KEY: 0)

[1] => NEW: arrays (KEY: 1)

[2] => NEW: are (KEY: 2)

[3] => NEW: cool (KEY: 3)

)

*/

希望本文所述对大家的php程序设计有所帮助。