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<?php function isStringNumeric($value) { if (is_numeric($value)) { $integer = (int) $value; // Or use intval() $floatOrInteger = $value + 0; // Can also give a float, so watch it. } else { echo "$value is not numeric!" . PHP_EOL; } } isStringNumeric('15'); isStringNumeric('foo'); isStringNumeric('10.5'); isStringNumeric(15); isStringNumeric('-10'); isStringNumeric('');
Output for git.master, git.master_jit, rfc.property-hooks
foo is not numeric! is not numeric!

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