The What does the $/i mean in the following php Code?
preg_match ( /^[A-Z .-]{2,20}$/i )
/ denotes the end of the patterns.
<<> 代码>为一根基——指在座的结尾处。 <代码>/为定期表述的“限值”。 <代码>i系指经常表述应当对个案敏感(请注意[A-Z.-]只适用于A-Z__>。 <代码>i 也就是说,它不必去找一个-子。
美元签署是“线末”这一共同的格外象征。
归根结底,这种言论本身就已经结束。
冲突之后的任何信件都是你可以转手或脱掉的选项,叫 mo。 在<代码>i的情况下,这意味着对个案不敏感。
/ 是PHP中ex形体的末限值。
<代码>i系指in灵敏度的定期语音搜索
你们也可以利用这一方法更好地了解情况,也可以用于测试/实践。
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