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The difference and meaning of /i,/g,/ig,/gi,/m in regular expressions, iggi_PHP tutorial

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Release： 2016-07-12 09:03:58
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The difference and meaning of /i,/g,/ig,/gi,/m in regular expressions, iggi

/i,/g,/ in regular expressions The difference and meaning of ig,/gi,/m

/i (忽略大小写)
/g (全文查找出现的所有匹配字符)
/m (多行查找)
/gi(全文查找、忽略大小写)
/ig(全文查找、忽略大小写)
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