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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) $isValid = true; var_dump($matches); if($isValid) { echo $value."\n"; } }
Output for git.master, git.master_jit, rfc.property-hooks
array(0) { } array(0) { } array(0) { } array(1) { [0]=> string(3) "1.1" } 1.1 array(0) { } array(1) { [0]=> string(4) "1.01" } 1.01 array(1) { [0]=> string(4) "2.33" } 2.33 array(0) { } array(0) { } array(0) { }

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