字符串的preg_match错误

Question

我有一个字符串

$dim = "64×191×75"

此字符串基本上是宽度x高度x深度。我想分离价值观。 我写的代码是：

<?php 
$dim = "64×191×75"
preg_match_all("'x(.*?)x'si",$dim,$dim_h);

$dimension['height'] = $dim_h[1][0];
$dimension['width'] = strstr($dim,'x',true);
$dimension['depth'] = substr(strrchr($dim,"x"),1);

var_dump($dimension);
exit();

This is Dump. I get along with a Notice. That Offset for $dim_h doesn't exist.
array (size=3)
'height' => null
'width' => boolean false
'depth' => boolean false

我无法找到字符串函数不起作用的任何原因。但不确定pregmatch。非常感谢帮助。

Answer 1

简单方法：

    $dim = "64×191×75";

    $tmp = explode('x', $dim, 3);
    $dimension['height'] = $tmp[0];
    $dimension['width'] = $tmp[1];
    $dimension['depth'] = $tmp[2];