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<?php $datetimes = [ '2003-01-28 01:23:45', '2007-04-04', '0000-00-00 00:00:00', '0000-00-00', '', null ]; foreach ($datetimes as $datetime) { sscanf($datetime, '%s', $sscanf); var_export( [ 'substr' => substr($datetime, 0, 10), 'explode' => explode(' ', $datetime, 2)[0], 'sscanf' => $sscanf, 'preg_replace' => preg_replace('/ .+/', '', $datetime), 'format' => (new \DateTime($datetime))->format('Y-m-d'), 'date&strtotime' => date("Y-m-d", strtotime($datetime)), 'strtok' => strtok($datetime, ' '), 'strstr' => strstr($datetime . ' ', ' ', true), 'substr_replace' => substr_replace($datetime, '', 10), 'preg_filter' => preg_filter('/.{10}\K.*/', '', $datetime), ] ); unset($sscanf); echo "\n---\n"; }
Output for 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 ( 'substr' => '2003-01-28', 'explode' => '2003-01-28', 'sscanf' => '2003-01-28', 'preg_replace' => '2003-01-28', 'format' => '2003-01-28', 'date&strtotime' => '2003-01-28', 'strtok' => '2003-01-28', 'strstr' => '2003-01-28', 'substr_replace' => '2003-01-28', 'preg_filter' => '2003-01-28', ) --- array ( 'substr' => '2007-04-04', 'explode' => '2007-04-04', 'sscanf' => '2007-04-04', 'preg_replace' => '2007-04-04', 'format' => '2007-04-04', 'date&strtotime' => '2007-04-04', 'strtok' => '2007-04-04', 'strstr' => '2007-04-04', 'substr_replace' => '2007-04-04', 'preg_filter' => '2007-04-04', ) --- array ( 'substr' => '0000-00-00', 'explode' => '0000-00-00', 'sscanf' => '0000-00-00', 'preg_replace' => '0000-00-00', 'format' => '-0001-11-30', 'date&strtotime' => '-0001-11-30', 'strtok' => '0000-00-00', 'strstr' => '0000-00-00', 'substr_replace' => '0000-00-00', 'preg_filter' => '0000-00-00', ) --- array ( 'substr' => '0000-00-00', 'explode' => '0000-00-00', 'sscanf' => '0000-00-00', 'preg_replace' => '0000-00-00', 'format' => '-0001-11-30', 'date&strtotime' => '-0001-11-30', 'strtok' => '0000-00-00', 'strstr' => '0000-00-00', 'substr_replace' => '0000-00-00', 'preg_filter' => '0000-00-00', ) --- array ( 'substr' => '', 'explode' => '', 'sscanf' => NULL, 'preg_replace' => '', 'format' => '2024-10-04', 'date&strtotime' => '1970-01-01', 'strtok' => false, 'strstr' => '', 'substr_replace' => '', 'preg_filter' => NULL, ) --- Deprecated: sscanf(): Passing null to parameter #1 ($string) of type string is deprecated in /in/FAImY on line 13 Deprecated: substr(): Passing null to parameter #1 ($string) of type string is deprecated in /in/FAImY on line 16 Deprecated: explode(): Passing null to parameter #2 ($string) of type string is deprecated in /in/FAImY on line 17 Deprecated: preg_replace(): Passing null to parameter #3 ($subject) of type array|string is deprecated in /in/FAImY on line 19 Deprecated: DateTime::__construct(): Passing null to parameter #1 ($datetime) of type string is deprecated in /in/FAImY on line 20 Deprecated: strtotime(): Passing null to parameter #1 ($datetime) of type string is deprecated in /in/FAImY on line 21 Deprecated: strtok(): Passing null to parameter #1 ($string) of type string is deprecated in /in/FAImY on line 22 Deprecated: substr_replace(): Passing null to parameter #1 ($string) of type array|string is deprecated in /in/FAImY on line 24 Deprecated: preg_filter(): Passing null to parameter #3 ($subject) of type array|string is deprecated in /in/FAImY on line 25 array ( 'substr' => '', 'explode' => '', 'sscanf' => NULL, 'preg_replace' => '', 'format' => '2024-10-04', 'date&strtotime' => '1970-01-01', 'strtok' => false, 'strstr' => '', 'substr_replace' => '', 'preg_filter' => NULL, ) ---
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