php – 查找正确的发生顺序

发布时间：2020-12-13 22:50:01 所属栏目：PHP教程来源：网络整理

导读：我有一个 PHP字符串,例如这个字符串(haystack)： $text = "here is a sample: this text,and this will be exploded. this also | this one too :)"; 现在我想按照字符串中出现针的顺序设置PHP数组.所以这是我的针： $needle = array(",",".","|",":"); 在$t

我有一个 PHP字符串,例如这个字符串(haystack)：

$text = "here is a sample: this text,and this will be exploded. this also | this one too :)";

现在我想按照字符串中出现针的顺序设置PHP数组.所以这是我的针：

$needle = array(",",".","|",":");

在$text字符串中搜索指针时,这应该是输出：

Array (
   [0] => :
   [1] =>,[2] => .
   [3] => |
   [4] => :
)

这有可能在PHP中实现吗？

这与此question类似,但这适用于JavaScript.

解决方法

str_split在这里很方便

$text = "here is a sample: this text,and this will be exploded. this also | this one too :)";
$needles = array(",":");
$chars = str_split($string);

$found = array();

foreach($chars as $char){
  if (in_array($char,$needles)){
    $found[] = $char ;
  }
}

（编辑：李大同）

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