Laravel preg_match():找不到结尾定界符"/" [英] Laravel preg_match(): No ending delimiter '/' found

问题描述

我正在研究Laravel 4.2.我正在尝试使用Validator通过正则表达式来验证名称字段，这是我的以下规则:

Im working on Laravel 4.2. Im trying to use Validator to validate a name field with regex, here is my rule below:

 public static $rules_save = [

        'class_subjects' => 'required|regex:/[0-9]([0-9]|-(?!-))+/'
    ];

但是，一旦我调用要验证的规则，就会引发错误，请参见以下内容:

But as soon as I call the rule to be validated an error is thrown, see below:

preg_match(): No ending delimiter '/' found

推荐答案

由于正则表达式中包含管道，因此必须使用数组:

Since your regex has a pipe in it, you have to use an array:

public static $rules_save = [
    'class_subjects' => ['required', 'regex:/[0-9]([0-9]|-(?!-))+/'],
];

来自文档:

使用regex模式时，可能需要在数组中指定规则而不是使用管道定界符，尤其是在正则表达式包含管道字符的情况下.

When using the regex pattern, it may be necessary to specify rules in an array instead of using pipe delimiters, especially if the regular expression contains a pipe character.

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