Regular Expressions 101

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Community Library Entry

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Regular Expression
PCRE (PHP <7.3)

/
^[A-Za-z]+[A-Za-z0-9]*(?:[-][A-Za-z0-9]+)*$
/
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Description

should start with letter follow by letters and numbers and (-) - zero or more can't start or finish with (-) can't have two or more consecutive (-) char

Submitted by Ali Azmoude - 10 years ago