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srand

srand

Seed the random number generator

void **srand**  $seed int $mode

Seeds the random number generator with or with a random value if no is given. seed``seed

Opmerking: > As of PHP 7.1.0, has been made an alias of .srand``mt_srand

seed Fills the state with values generated with a linear congruential generator that was seeded with interpreted as an unsigned 32 bit integer. seed

   If  is omitted or null, a random unsigned
   32-bit integer will be used.
  `seed`

return.void

rand``getrandmax``mt_srand