Alphanumeric Validation

^ s * | s * $ Comment: Can be used to delete the first line of the first line of the whitespace characters (including spaces, tabs, page breaks, etc. ), A very useful expression $ action = trim ($ _ get ['action']); if ($ action == "sub") {$ str = $ _post ['dir']; & ...

Validation experiment [Zhoujing@zhouj code]$ git clone https://github.com/wardviaene/kubernetes-course cloning to ' kubernetes-course ' ... Remote:counting objects:90, done. Remote:total (Delta 0), reused 0 (Delta 0),...

php tutorial to verify the legitimacy of the user name regular code We verify this user name is a regular validation of letters, numbers, username, not including Chinese Oh. function funcstrnum ($ str, $ num1 = '', $ num2 = '') // alphanumeric {if ($ num1! = '' and $ num2! = '') {return (preg_match ("/ ^ [^ a-z0-9a-z _@!.-] {& q ...

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