Twig/PHP - 使用替换或正则表达式格式化字符串
问题描述：
如何在 Twig 中格式化字符串，如下所示:
How can I format a string in Twig as follows:
例如:img = 05myphoto-Car.jpg
我需要删除数字前缀和-
我主要用它来根据文件名输出图像的标题
I need to remove the numeric prefix and -
I am mainly using this to output captions for images based on their filename
期望的输出:
Myphoto Car
到目前为止，我已经从文档中尝试过:
I have tried this so far, from the docs:
{{ img |replace({'.jpg': "", '-' : " "}) }}
输出字符串
05myphoto Car
我也试过 {{ replace({'range(0, 9)': ""}) }}//对于数字前缀 - 没有用
答
迟到总比不到好...
只需注册它(对我来说是在 index.php 上)
Just register it (for me was on index.php)
$app['twig']->addFilter('preg_replace', new Twig_Filter_Function(function ($subject, $pattern, $replacement) {
return preg_replace($pattern, $replacement, $subject);
}));
然后在视图上:{{myVar|preg_replace('/\\d+/','')}}
请注意，所有反斜杠都必须转义，否则，它们将被 Twig 删除...
Notice that all backslashes MUST be escaped, if not, they will be removed by Twig...