php里array_work用法实例分析，array_work实例分析_PHP教程
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2022-06-02 20:20:18
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php里array_work用法实例分析，array_work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。