note 130187 added to function.preg-split

Using the flags requires passing a limit option even if you desire no limit, use 0 or -1. Otherwise the result is unexpected, as the flags, being predefined constants, are integers and will be taken as the split limit not the flag as intended. echo PREG_SPLIT_DELIM_CAPTURE,' ', PREG_SPLIT_NO_EMPTY,' ', PREG_SPLIT_OFFSET_CAPTURE,"\n"; echos: 2 1 4 print_r(preg_split('//', '131.95M', PREG_SPLIT_NO_EMPTY) ); produces array: [ '131.95M'] as limit is actually set to 1 print_r( preg_split('//', '131.95M', 0, PREG_SPLIT_NO_EMPTY) ); produces array: [ "1", "3", "1", ".", "9", "5", "M"] print_r( preg_split('/([[:alpha:]])/', '131.95M', PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY) ); produces array: [ '131.95', ''] print_r( preg_split('/([[:alpha:]])/', '131.95M', -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY) ); produces array: [ '131.95', 'M'] ---- Server IP: 45.112.84.4 Probable Submitter: 80.90.5.137 (proxied: 2001:8003:4016:7800:b117:17d8:7e86:db80) ---- Manual Page -- https://php.net/manual/en/function.preg-split.php Edit -- https://main.php.net/note/edit/130187 Del: integrated -- https://main.php.net/note/delete/130187/integrated Del: useless -- https://main.php.net/note/delete/130187/useless Del: bad code -- https://main.php.net/note/delete/130187/bad+code Del: spam -- https://main.php.net/note/delete/130187/spam Del: non-english -- https://main.php.net/note/delete/130187/non-english Del: in docs -- https://main.php.net/note/delete/130187/in+docs Del: other reasons-- https://main.php.net/note/delete/130187 Reject -- https://main.php.net/note/reject/130187 Search -- https://main.php.net/manage/user-notes.php