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<?php function weightedRand($min, $max, $gamma) { $offset = $max - $min + 1; return floor($min + pow(lcg_value(), $gamma) * $offset); } $ola = weightedRand(1, 4, 2.2); var_dump($ola);
Output for 4.3.0 - 4.3.1, 4.3.4 - 4.3.5, 4.3.7, 4.3.9, 4.4.3, 4.4.5, 4.4.9, 5.0.1, 5.0.3 - 5.0.5, 5.1.1, 5.1.3 - 5.1.4, 5.1.6, 5.2.0, 5.2.2, 5.2.4 - 5.2.6, 5.2.9 - 5.2.12, 5.2.14, 5.2.16 - 5.2.17, 5.3.0 - 5.3.29, 5.4.1, 5.4.4, 5.4.6 - 5.4.7, 5.4.12, 5.4.16, 5.4.18, 5.4.22, 5.4.25 - 5.4.27, 5.4.29 - 5.4.32, 5.4.34 - 5.4.36, 5.4.39, 5.4.44 - 5.4.45, 5.5.7 - 5.5.8, 5.5.11 - 5.5.12, 5.5.15, 5.5.18, 5.5.20, 5.5.22 - 5.5.23, 5.5.28, 5.5.30 - 5.5.31, 5.5.35, 5.5.38, 5.6.0 - 5.6.1, 5.6.3, 5.6.7, 5.6.10, 5.6.12, 5.6.15 - 5.6.16, 5.6.18 - 5.6.19, 5.6.21, 5.6.23 - 5.6.24, 5.6.26, 5.6.29 - 5.6.30, 5.6.33, 5.6.35, 5.6.37 - 5.6.38, 7.0.1 - 7.0.2, 7.0.4 - 7.0.6, 7.0.9 - 7.0.10, 7.0.13, 7.0.15 - 7.0.19, 7.0.21, 7.0.27, 7.0.31 - 7.0.32, 7.1.1 - 7.1.4, 7.1.6, 7.1.8, 7.1.11 - 7.1.12, 7.1.19 - 7.1.20, 7.1.23, 7.1.26, 7.1.31, 7.1.33, 7.2.0, 7.2.3 - 7.2.4, 7.2.9, 7.2.11, 7.2.13, 7.2.15, 7.2.18, 7.2.20 - 7.2.21, 7.2.24, 7.3.1, 7.3.6, 7.3.9 - 7.3.10, 7.3.12, 7.4.1
float(1)
Output for 4.3.2 - 4.3.3, 4.3.6, 4.4.1 - 4.4.2, 4.4.7, 5.1.2, 5.2.7 - 5.2.8, 5.2.15, 5.4.3, 5.4.11, 5.4.13, 5.4.15, 5.4.17, 5.4.20, 5.4.28, 5.4.38, 5.4.42, 5.5.0 - 5.5.3, 5.5.13, 5.5.21, 5.5.32, 5.5.34, 5.5.36, 5.6.4 - 5.6.6, 5.6.20, 5.6.25, 5.6.27, 5.6.32, 5.6.36, 7.0.3, 7.0.8, 7.0.20, 7.0.28 - 7.0.30, 7.0.33, 7.1.0, 7.1.7, 7.1.9 - 7.1.10, 7.1.13 - 7.1.14, 7.1.29 - 7.1.30, 7.2.2, 7.2.8, 7.2.14, 7.2.16, 7.2.22, 7.3.4, 7.3.8, 7.3.11, 7.3.13, 7.4.0
float(2)
Output for 4.4.0, 4.4.4, 5.1.0, 5.2.1, 5.4.0, 5.4.2, 5.4.5, 5.4.19, 5.4.40 - 5.4.41, 5.4.43, 5.5.5 - 5.5.6, 5.5.10, 5.5.14, 5.5.27, 5.5.29, 5.6.8 - 5.6.9, 5.6.11, 5.6.14, 5.6.17, 5.6.22, 5.6.28, 5.6.40, 7.0.11 - 7.0.12, 7.0.14, 7.0.23 - 7.0.26, 7.1.15 - 7.1.18, 7.1.21, 7.1.24 - 7.1.25, 7.1.27, 7.1.32, 7.2.5, 7.2.7, 7.2.10, 7.2.12, 7.2.17, 7.3.0, 7.3.7
float(3)
Output for 4.3.8, 4.3.10 - 4.3.11, 4.4.6, 4.4.8, 5.0.0, 5.0.2, 5.1.5, 5.2.3, 5.2.13, 5.4.8 - 5.4.10, 5.4.14, 5.4.21, 5.4.23 - 5.4.24, 5.4.33, 5.4.37, 5.5.4, 5.5.9, 5.5.16 - 5.5.17, 5.5.19, 5.5.24 - 5.5.26, 5.5.33, 5.5.37, 5.6.2, 5.6.13, 5.6.31, 5.6.34, 5.6.39, 7.0.0, 7.0.7, 7.0.22, 7.1.5, 7.1.22, 7.1.28, 7.2.1, 7.2.6, 7.2.19, 7.2.23, 7.2.25 - 7.2.26, 7.3.2 - 7.3.3, 7.3.5
float(4)

preferences:
215.37 ms | 408 KiB | 325 Q