srand Seed the random number generator &reftitle.description; voidsrand intseed Seeds the random number generator with seed or with a random value if no seed is given. ¬e.randomseed; As of PHP 7.1.0, srand has been made an alias of mt_srand. &reftitle.parameters; seed An arbitrary integer seed value. &reftitle.returnvalues; &return.void; &reftitle.changelog; &Version; &Description; 7.1.0 srand has been made an alias of mt_srand. &reftitle.examples; <function>srand</function> example ]]> &reftitle.seealso; rand getrandmax mt_srand