rand Generate a random integer &reftitle.description; intrand intrand intmin intmax If called without the optional min, max arguments rand returns a pseudo-random integer between 0 and getrandmax. If you want a random number between 5 and 15 (inclusive), for example, use rand(5, 15). &caution.cryptographically-insecure; On some platforms (such as Windows), getrandmax is only 32767. If you require a range larger than 32767, specifying min and max will allow you to create a range larger than this, or consider using mt_rand instead. As of PHP 7.1.0, rand uses the same random number generator as mt_rand. To preserve backwards compatibility rand allows max to be smaller than min as opposed to returning &false; as mt_rand. &reftitle.parameters; min The lowest value to return (default: 0) max The highest value to return (default: getrandmax) &reftitle.returnvalues; A pseudo random value between min (or 0) and max (or getrandmax, inclusive). &reftitle.changelog; &Version; &Description; 7.2.0 rand has received a bug fix for a modulo bias bug. This means that sequences generated with a specific seed may differ from PHP 7.1 on 64-bit machines. 7.1.0 rand has been made an alias of mt_rand. &reftitle.examples; ]]> &example.outputs.similar; &reftitle.notes; min max range must be within the range getrandmax. i.e. (max - min) <= getrandmax Otherwise, rand may return poor-quality random numbers. &reftitle.seealso; srand getrandmax mt_rand random_int random_bytes openssl_random_pseudo_bytes