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Home/ Questions/Q 799237
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Editorial Team
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Editorial Team
Asked: May 14, 20262026-05-14T23:05:42+00:00 2026-05-14T23:05:42+00:00

How can I get a string that only contains a to z, A to

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How can I get a string that only contains a to z, A to Z, 0 to 9 and some symbols?

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  1. Editorial Team
    Editorial Team
    2026-05-14T23:05:43+00:00Added an answer on May 14, 2026 at 11:05 pm

    You can test your string (let $str) using preg_match:

    if(preg_match("/^[a-zA-Z0-9]+$/", $str) == 1) {
        // string only contain the a to z , A to Z, 0 to 9
    }
    

    If you need more symbols you can add them before ]

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