3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $values = array( 0, 1, '1', 1.1, 1.00, 1.01, 2.33, 3.445, -3.45, 12.3432 ); foreach($values as $value) { $isValid = false; // $value = abs($value); //$regexp = '/^[0-9]+\.[0-9][0-9]?$/'; //$result = preg_match($regexp, $value, $matches); $regexp = '/^[0-9]+?$/'; var_dump((bool)preg_match($regexp, $value)); if(count($matches) == 1) $isValid = true; var_dump($result); if($isValid) { echo $value."\n"; } }
Output for 5.0.4 - 7.1.0
bool(true) Notice: Undefined variable: matches in /in/96aui on line 31 Notice: Undefined variable: result in /in/96aui on line 34 NULL bool(true) Notice: Undefined variable: matches in /in/96aui on line 31 Notice: Undefined variable: result in /in/96aui on line 34 NULL bool(true) Notice: Undefined variable: matches in /in/96aui on line 31 Notice: Undefined variable: result in /in/96aui on line 34 NULL bool(false) Notice: Undefined variable: matches in /in/96aui on line 31 Notice: Undefined variable: result in /in/96aui on line 34 NULL bool(true) Notice: Undefined variable: matches in /in/96aui on line 31 Notice: Undefined variable: result in /in/96aui on line 34 NULL bool(false) Notice: Undefined variable: matches in /in/96aui on line 31 Notice: Undefined variable: result in /in/96aui on line 34 NULL bool(false) Notice: Undefined variable: matches in /in/96aui on line 31 Notice: Undefined variable: result in /in/96aui on line 34 NULL bool(false) Notice: Undefined variable: matches in /in/96aui on line 31 Notice: Undefined variable: result in /in/96aui on line 34 NULL bool(false) Notice: Undefined variable: matches in /in/96aui on line 31 Notice: Undefined variable: result in /in/96aui on line 34 NULL bool(false) Notice: Undefined variable: matches in /in/96aui on line 31 Notice: Undefined variable: result in /in/96aui on line 34 NULL
Output for 4.3.0 - 5.0.3
bool(true) Notice: Undefined variable: matches in /in/96aui on line 31 Notice: Undefined variable: result in /in/96aui on line 34 NULL bool(true) Notice: Undefined variable: matches in /in/96aui on line 31 Notice: Undefined variable: result in /in/96aui on line 34 NULL bool(true) Notice: Undefined variable: matches in /in/96aui on line 31 Notice: Undefined variable: result in /in/96aui on line 34 NULL bool(false) Notice: Undefined variable: matches in /in/96aui on line 31 Notice: Undefined variable: result in /in/96aui on line 34 NULL bool(true) Notice: Undefined variable: matches in /in/96aui on line 31 Notice: Undefined variable: result in /in/96aui on line 34 NULL bool(false) Notice: Undefined variable: matches in /in/96aui on line 31 Notice: Undefined variable: result in /in/96aui on line 34 NULL bool(false) Notice: Undefined variable: matches in /in/96aui on line 31 Notice: Undefined variable: result in /in/96aui on line 34 NULL bool(false) Notice: Undefined variable: matches in /in/96aui on line 31 Notice: Undefined variable: result in /in/96aui on line 34 NULL bool(false) Notice: Undefined variable: matches in /in/96aui on line 31 Notice: Undefined variable: result in /in/96aui on line 34 NULL bool(false) Notice: Undefined variable: matches in /in/96aui on line 31 Notice: Undefined variable: result in /in/96aui on line 34 NULL