<?php $a = 'abd'; $b = 'ABd'; setlocale(LC_ALL, 'C'); var_dump(strcmp($a, $b)); var_dump(strcoll($a, $b)); var_dump(strcasecmp($a, $b)); setlocale(LC_COLLATE, 'en_US'); var_dump(strcmp($a, $b)); var_dump(strcoll($a, $b)); var_dump(strcasecmp($a, $b));
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Value for `_results` contains invalid data `array`