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如何用PHP来过滤输入的内容中包含的元字符

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Release： 2016-06-13 13:42:44
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怎么用PHP来过滤输入的内容中包含的元字符
怎么用PHP来过滤输入的内容中包含的元字符

------解决方案--------------------
需要过滤什么元字符使用\来解决 例如 '/\?+/',$str


------解决方案--------------------
洒家对此极为擅长。洒家来助你。
好汉，你要实现何功能？

正则表达式
()
贪婪.*
不贪婪.*?
安行u
区分大小写i



查找用preg_match(正则，目标，结果仍一数组)
替换用preg_replace(正则,目标,源)

Related labels：
match php replace str
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