<?php $string = '@mention_1 @$badmention Manual balls knit cardigan @120rb email me @ example@example.com'; $count = preg_match_all( '/(?:^|\s)@\K\w+/', $string, $matches ); var_export([ 'count' => $count, 'matches' => $matches[0] ]);
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Value for `_results` contains invalid data `array`