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Why don’t you use or or || in the middle?

if((!isset($error)) and (!ereg("^[_0-9a-z]*$",$nicker))) $error="The nickname needs to be composed of letters, numbers and underscores ";


小周小周2324 days ago1193

reply all(1)I'll reply

  • 无忌哥哥

    无忌哥哥2018-07-17 09:42:21

    This means both must be judged, not just one, so using and and or are used to judge only one condition.

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  • 小周

    Um thank you

    小周 · 2018-07-17 09:45:42
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