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(PHP 4 >= 4.0.4, PHP 5)
gmp_popcount() dénombre la population de a.
Exemple 1. Exemple avec gmp_popcount()
<?php$pop1 = gmp_init("10000101", 2); // 3 1'secho gmp_popcount($pop1) . "\n";$pop2 = gmp_init("11111110", 2); // 7 1'secho gmp_popcount($pop2) . "\n";?>
L'exemple ci-dessus va afficher :
3 7
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