Laravel验证正则表达式,在视图中打破

Ale*_*lex 8 html php regex validation laravel

所以,我的模型中有以下规则:

public static $rules = array(
    'name'            => 'required|alpha_dash|unique:subsidiaries',
    'internal_number' => 'required|alpha_dash|unique:subsidiaries',
    'expedition_rate' => array('required', 'regex:/^[0-9]{1,3}(\.?)[0-9]{1,2}$/'),
    'hundred_kg_rate' => array('regex:/^[0-9]{1,5}(\.?)[0-9]{1,2}$/'),
    'handling'        => array('regex:/^[0-9]{1,3}(\.?)[0-9]{1,2}$/'),
    'insurance'       => 'required|numeric',
);
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但是,出于某种原因,当正则表达式应用于patternhtml 中的属性标记时...它会中断!

结果:

<input required="true" pattern="^[0-9]{" class="form-control" ....>
                               _________
                                 \
                                  => This right here should be
                               ^[0-9]{1,3}(\.?)[0-9]{1,2}$
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Tho*_*ley 0

尝试转义大括号...我敢打赌 PHP 期望解析内部的变量,如下所示:

$var = 'something';
echo 'The value is {$var}.';
// Outputs:
// The value is something.
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将此与以下内容进行对比:

$var = 'something';
echo 'The value is \{$var\}.';
// Outputs:
// The value is $var.
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但让我感到困惑的是,这些都在单引号内,所以这种情况不应该发生。也许是 Laravel 的事情?