检查字符串是否包含某个数字 [英] Check if a string contains a certain number

问题描述

我有一个字符串

8,7,13,14,16

确定该字符串中是否存在给定数字的最简单方法是什么?

Whats the easiest way to determine if a given number is present in that string?

$numberA = "13";
$string = "8,7,13,14,16";

if($string magic $numberA){
$result = "Yeah, that number is in there";
} else {
$result = "Sorry.";
}

寻找魔法.

推荐答案

<?php 
in_array('13', explode(',', '8,7,13,14,16'));
?>

...将返回字符串中是否包含13".

…will return whether '13' is in the string.

只是详细说明:在这种情况下，explode 将字符串转换为一个数组，在每个 ',' 处将其拆分.然后，in_array 检查字符串 '13' 是否在结果数组中的某处.

Just to elaborate: explode turns the string into an array, splitting it at each ',' in this case. Then, in_array checks if the string '13' is in the resulting array somewhere.

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