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<?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, $matches)); if(count($matches) == 1) $isValid = true; var_dump($result); if($isValid) { echo $value."\n"; } }
Output for git.master, git.master_jit, rfc.property-hooks
int(0) int(0) int(0) int(1) 1.1 int(0) int(1) 1.01 int(1) 2.33 int(0) int(0) int(0)

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