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<?php $values = array( 0, 1, '1', 1.00, 1.01, 2.33, 3.445, -3.45 ); foreach($values as $value) { $regexp = '/^(-)?[0-9]+\.[0-9][0-9]?$/'; preg_match_all($regexp, $value, $matches); var_dump($matches); }
Output for git.master, git.master_jit, rfc.property-hooks
array(2) { [0]=> array(0) { } [1]=> array(0) { } } array(2) { [0]=> array(0) { } [1]=> array(0) { } } array(2) { [0]=> array(0) { } [1]=> array(0) { } } array(2) { [0]=> array(0) { } [1]=> array(0) { } } array(2) { [0]=> array(1) { [0]=> string(4) "1.01" } [1]=> array(1) { [0]=> string(0) "" } } array(2) { [0]=> array(1) { [0]=> string(4) "2.33" } [1]=> array(1) { [0]=> string(0) "" } } array(2) { [0]=> array(0) { } [1]=> array(0) { } } array(2) { [0]=> array(1) { [0]=> string(5) "-3.45" } [1]=> array(1) { [0]=> string(1) "-" } }

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