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<?php $myArray = ['a','b','c','title1','d','e','f','title2','g','h','title3','i','title4','j','k']; $batch = 0; foreach ($myArray as $v) { if (strpos($v, 'title') !== 0) { $result[$batch][] = $v; } else { ++$batch; } } var_export($result);

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