php字符串函数，用于在最后一次出现字符之前获取子字符串 [英] php string function to get substring before the last occurrence of a character

问题描述

$string = "Hello World Again".
echo strrchr($string , ' '); // Gets ' Again'

现在，我想从$string [最后一次出现空格''之前的子字符串"中获取"Hello World".我怎么得到它??

Now I want to get "Hello World" from the $string [The substring before the last occurrence of a space ' ' ]. How do I get it??

推荐答案

这是一种廉价的方法，但是您可以拆分，弹出然后加入以完成它:

This is kind of a cheap way to do it, but you could split, pop, and then join to get it done:

$string = 'Hello World Again';
$string = explode(' ', $string);
array_pop($string);
$string = implode(' ', $string);

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