PHP Reference

Quick Reference

The PHP mt_srand() function seeds the Mersenne Twister random number generator.

<?php
echo(mt_srand());
?>

Output

1293912259

Syntax

mt_srand()

// or

mt_srand(seed, mode)

Parameters

ParameterDescription
seedSpecifies the seed value
modeSpecifies the algorithm to use:

  • MT_RAND_MT19937 - uses the fixed, correct Mersenne Twister implementation (which is used from PHP 7.1)

  • MT_RAND_PHP - uses the incorrect Mersenne Twister implementation (which was used up to PHP 7.1)


PHP Notes:

  • When using PHP, single or double quotation marks are acceptable and work identically to one another; choose whichever you prefer, and stay consistent
  • Arrays count starting from zero NOT one; so item 1 is position [0], item 2 is position [1], and item 3 is position [2] … and so on

We’d like to acknowledge that we learned a great deal of our coding from W3Schools and TutorialsPoint, borrowing heavily from their teaching process and excellent code examples. We highly recommend both sites to deepen your experience, and further your coding journey. We’re just hitting the basics here at 1SMARTchicken.