在 php 数组中搜索部分字符串匹配 [英] search a php array for partial string match

问题描述

我有一个数组，我想搜索字符串 'green'.所以在这种情况下它应该返回 $arr[2]

I have an array and I'd like to search for the string 'green'. So in this case it should return the $arr[2]

$arr = array(0 => 'blue', 1 => 'red', 2 => 'green string', 3 => 'red');

是否有像 in_array() 这样的预定义函数可以而不是循环遍历它并比较每个值?

is there any predefined function like in_array() that does the job rather than looping through it and compare each values?

推荐答案

可以使用php的preg_grep函数.PHP >= 4.0.5 支持.

You can use preg_grep function of php. It's supported in PHP >= 4.0.5.

$array = array(0 => 'blue', 1 => 'red', 2 => 'green string', 3 => 'red');
$m_array = preg_grep('/^green\s.*/', $array);

$m_array 包含数组的匹配元素.

$m_array contains matched elements of array.

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