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<?php $sample = array('a.col1','a.col2','b.col1','c.col1','c.col2','d.col5'); foreach ($sample as $column) { ${strstr($column, '.', true)}[] = $column; } var_export($a); var_export($b); var_export($c); var_export($d);
Output for 7.1.25 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
array ( 0 => 'a.col1', 1 => 'a.col2', )array ( 0 => 'b.col1', )array ( 0 => 'c.col1', 1 => 'c.col2', )array ( 0 => 'd.col5', )
preferences:
74.32 ms | 1510 KiB | 4 Q