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关于PHP Warning: implode(): Invalid arguments passed in报错有关问题

PHPz
Release: 2019-12-31 14:55:43
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关于PHP Warning:  implode(): Invalid arguments passed in报错有关问题

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implode("\n",$msg)
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报错:

implode(): Invalid arguments passed
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最后发现:

$msg为array(0) {}
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解决办法:

if(isset($msg)){implode("\n",$msg);}
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