Why string 'all' == 0 return true, but 'all' == 1 return false. Honestly, the main question is why 'all' == 0 return true.
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Ervan Prastyanto
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1For more details see [this](https://www.php.net/manual/en/types.comparisons.php) (especially the table at *Loose comparisons with ==*). – Definitely not Rafal Feb 20 '21 at 10:32
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1[They seem to have changed this behavior](https://3v4l.org/67A8D). – Definitely not Rafal Feb 20 '21 at 10:38
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conditionally 'all' return false in bool. so basically false == false returns you true – Masih Ansari Feb 20 '21 at 11:09