javascript - 检查从 preg_replace() 返回的值是否存在于数组中

Question

我有一个消息字符串例如:

$data="Hey my dear :laugh: how are you :mmmmm: :smile: and non existing smile :go: ";

我有微笑数组(用于检查)

$smileys=array("laugh","mmmm","smile");

昨天 friend 帮我把:smile:类型转换成喜欢下来

$data=preg_replace("/:([a-zA-Z]+):/","<img src='images/smileys/$1.png' class='smile'>",$data);

我如何检查数组中是否存在这个微笑？

示例:http://masters.az
登录:测试
通过:测试
代码示例:http://masters.az/message-3

Answer 1

我会用 或 内爆术语，然后在替换中使用找到的术语。

$data = "Hey my dear :laugh: how are you :mmmmm: :smile: and non existing smile :go: ";
$smileys = array("laugh","mmmm","smile");
echo preg_replace('/:(' . implode('|', $smileys) . '):/', '<img src="images/smileys/$1.png" class="$1">', $data);

PHP 演示:https://eval.in/511095

Regex101 演示:https://regex101.com/r/hI1aX0/1

这是一个 JS 方法:

var test = ["laugh","mmmm","smile"];
var regex = new RegExp(':(' + test.join('|') + '):', 'g');
var string = "Hey my dear :laugh: how are you :mmmmm: :smile: and non existing smile :go: ";
var string = string.replace(regex, '<img src="images/smileys/$1.png" class="$1">');
console.log(string);
console.log(regex);

演示:https://jsfiddle.net/8fj00bg5/