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<?php $app_filename = "AntivirusSecurity_02_cb-508164-ce_ac8a0e5e-35f8-4c7b-b591-7e28cab94b4e.apk"; $click_id_fence_beginning = 'cb-'; $click_id_fence_end = '-ce'; preg_match_all("^\cb-([0-9]*?)\-ce^",$app_filename,$fields, PREG_PATTERN_ORDER); print_r($fields);

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