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PHP中的正则表达式

PHP中的正则表达式

PHP
相形见绌_杭 2017-12-14 16:42:03
$ereg = "([a-zA-Z0-9_\-]+)@([a-zA-Z0-9_\-]+\ . [a-zA-Z0-9\-\ . _\]+)";//邮箱检测的正则表达式,//每个0-9后面的  _ / -  是什么意思?
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慕瓜9220888

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反对 回复 2021-10-20
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产品经理不是经理

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_\-: 表示字符集里面包括下划线和中划线。

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反对 回复 2017-12-14
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