3v4l.org

run code in 300+ PHP versions simultaneously
<?php error_reporting(-1); set_time_limit(0); generate_nice('php'); function generate_nice($word) { echo 'Word: ', $word, "\n"; $i = generate($word); echo 'Seed: ', $i, "\n"; echo 'Test: ', test($i, strlen($word)), "\n"; } function generate($word) { $l = strlen($word); $s = ''; for ($i = 0; $s !== $word; ++$i) { $s = ''; mt_srand($i); for ($j = 0; $j < $l; ++$j) { $s .= chr(96 + mt_rand(1, 26)); } } return $i - 1; } function test($i, $l) { $s = ''; mt_srand($i); for ($j = 0; $j < $l; ++$j) { $s .= chr(96 + mt_rand(1, 26)); } return $s; }

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
7.4.00.0000.04115.03
7.3.120.0140.03014.93
7.3.110.0130.02914.84
7.3.100.0160.02914.88
7.3.90.0070.03615.10
7.3.80.0030.02414.63
7.3.70.0030.02914.94
7.3.60.0000.03514.81
7.3.50.0000.03314.94
7.3.40.0070.02314.73
7.3.30.0030.03114.82
7.3.20.0130.02316.59
7.3.10.0030.02716.73
7.3.00.0110.02216.50
7.2.250.0070.02815.21
7.2.240.0130.03215.07
7.2.230.0060.02515.13
7.2.220.0030.04015.31
7.2.210.0100.02414.93
7.2.200.0000.03215.12
7.2.190.0070.02815.21
7.2.180.0100.02014.90
7.2.170.0070.02015.23
7.2.00.0000.03119.32
7.1.330.0030.03116.07
7.1.320.0100.03315.85
7.1.310.0000.03615.65
7.1.300.0030.03315.63
7.1.290.0100.02715.59
7.1.280.0000.02915.99
7.1.270.0070.02615.75
7.1.260.0000.03515.84
7.1.70.0030.02817.19
7.1.60.0100.04319.29
7.1.50.0030.05216.87
7.1.00.0070.10322.45
7.0.200.0000.07716.46
7.0.140.0130.15721.99
7.0.100.0000.10319.98
7.0.90.0070.10719.99
7.0.80.0070.09719.95
7.0.70.0070.09720.04
7.0.60.0070.10720.01
7.0.50.0070.10020.23
7.0.40.0070.15720.13
7.0.30.0070.15320.09
7.0.20.0070.16020.15
7.0.10.0100.14719.99
7.0.00.0070.10320.00
5.6.250.0030.11020.79
5.6.240.0070.10320.58
5.6.230.0030.11020.64
5.6.220.0030.12320.68
5.6.210.0000.11320.76
5.6.200.0070.10721.18
5.6.190.0100.13721.04
5.6.180.0030.18321.05
5.6.170.0130.17020.97
5.6.160.0000.11321.04
5.6.150.0030.11021.04
5.6.140.0000.11021.06
5.6.130.0170.15721.03
5.6.120.0100.16720.99
5.6.110.0100.15720.96
5.6.100.0170.14321.11
5.6.90.0130.16720.94
5.6.80.0100.15020.43
5.6.70.0070.10020.56
5.6.60.0000.16020.43
5.6.50.0070.16720.50
5.6.40.0070.16720.41
5.6.30.0070.16720.38
5.6.20.0070.12020.53
5.6.10.0100.13720.39
5.6.00.0100.16020.41
5.5.380.0070.10720.46
5.5.370.0030.11720.43
5.5.360.0100.14020.45
5.5.350.0130.16020.34
5.5.340.0070.10020.88
5.5.330.0030.11020.93
5.5.320.0100.16320.82
5.5.310.0070.15720.91
5.5.300.0100.15020.89
5.5.290.0130.17020.90
5.5.280.0100.16720.82
5.5.270.0030.17020.89
5.5.260.0130.17020.76
5.5.250.0200.09720.73
5.5.240.0100.14720.04
5.5.230.0000.19020.19
5.5.220.0170.16720.26
5.5.210.0100.16720.13
5.5.200.0000.15020.27
5.5.190.0170.17020.14
5.5.180.0030.15320.23
5.5.160.0070.17720.23
5.5.150.0100.11020.30
5.5.140.0070.16020.28
5.5.130.0070.17020.23
5.5.120.0130.16720.24
5.5.110.0130.14720.27
5.5.100.0000.11020.09
5.5.90.0070.10320.11
5.5.80.0070.17019.95
5.5.70.0100.15320.07
5.5.60.0070.16720.13
5.5.50.0030.19320.11
5.5.40.0030.12720.04
5.5.30.0030.17320.06
5.5.20.0030.17320.07
5.5.10.0030.16320.10
5.5.00.0170.16320.05
5.4.450.0000.17319.38
5.4.440.0070.16319.38
5.4.430.0070.12019.18
5.4.420.0070.16019.21
5.4.410.0130.17019.41
5.4.400.0070.15019.23
5.4.390.0130.14318.86
5.4.380.0030.17019.21
5.4.370.0000.10319.05
5.4.360.0130.16018.89
5.4.350.0070.16719.07
5.4.340.0070.17719.22
5.4.320.0070.17019.25
5.4.310.0030.16019.18
5.4.300.0030.15019.09
5.4.290.0070.17019.23
5.4.280.0100.15019.20
5.4.270.0130.16319.16
5.4.260.0030.15319.04
5.4.250.0070.10319.04
5.4.240.0100.15718.94
5.4.230.0100.09719.18
5.4.220.0030.18319.03
5.4.210.0030.15018.95
5.4.200.0100.14319.02
5.4.190.0030.15018.84
5.4.180.0070.12019.03
5.4.170.0070.15019.04
5.4.160.0030.15319.11
5.4.150.0100.16719.14
5.4.140.0130.14016.25
5.4.130.0000.16016.45
5.4.120.0070.15016.30
5.4.110.0130.13316.42
5.4.100.0070.13716.55
5.4.90.0070.16016.33
5.4.80.0070.15316.47
5.4.70.0130.13716.43
5.4.60.0130.15016.37
5.4.50.0030.15716.47
5.4.40.0070.17016.53
5.4.30.0130.16316.36
5.4.20.0100.11316.36
5.4.10.0100.14716.45
5.4.00.0030.15315.87
5.3.290.0130.11714.65
5.3.280.0030.10314.59
5.3.270.0030.10314.71
5.3.260.0100.16014.63
5.3.250.0030.10314.61
5.3.240.0100.15014.65
5.3.230.0170.15714.54
5.3.220.0130.17714.71
5.3.210.0000.19714.51
5.3.200.0130.16014.71
5.3.190.0030.19314.56
5.3.180.0030.18314.71
5.3.170.0000.13314.53
5.3.160.0100.15714.51
5.3.150.0100.19014.53
5.3.140.0030.12714.49
5.3.130.0130.16014.55
5.3.120.0100.18714.58
5.3.110.0030.18714.59
5.3.100.0100.20314.00
5.3.90.0030.19013.95
5.3.80.0030.19014.12
5.3.70.0070.18714.18
5.3.60.0000.20313.90
5.3.50.0030.17713.88
5.3.40.0000.15713.84
5.3.30.0030.20013.89
5.3.20.0000.19713.72
5.3.10.0100.17313.80
5.3.00.0070.18713.70
5.2.170.0030.17711.27
5.2.160.0030.18711.27
5.2.150.0030.20311.18
5.2.140.0030.11711.24
5.2.130.0030.11711.00
5.2.120.0100.17711.13
5.2.110.0000.12011.22
5.2.100.0070.11711.20
5.2.90.0030.12011.12
5.2.80.0100.19011.09
5.2.70.0000.12011.02
5.2.60.0070.11311.12
5.2.50.0170.15011.17
5.2.40.0100.17010.94
5.2.30.0000.19011.01
5.2.20.0100.19010.90
5.2.10.0070.11710.86
5.2.00.0030.23710.80
5.1.60.0000.24310.00
5.1.50.0100.20310.00
5.1.40.0000.23710.07
5.1.30.0000.22710.26
5.1.20.0100.20010.28
5.1.10.0070.23710.19
5.1.00.0000.23010.22
5.0.50.0030.2109.49
5.0.40.0100.2479.49
5.0.30.0030.2779.49
5.0.20.0000.2009.49
5.0.10.0070.2539.49
5.0.00.0070.1979.49
4.4.90.0000.2739.49
4.4.80.0030.2439.49
4.4.70.0070.1839.49
4.4.60.0000.2679.49
4.4.50.0030.2479.49
4.4.40.0270.1779.49
4.4.30.0070.2709.49
4.4.20.0030.2209.49
4.4.10.0030.2679.49
4.4.00.0030.2609.49
4.3.110.0000.2609.49
4.3.100.0030.2409.49
4.3.90.0030.2679.49
4.3.80.0030.2039.49
4.3.70.0000.2539.49
4.3.60.0030.2439.49
4.3.50.0070.2509.49
4.3.40.0070.2809.49
4.3.30.0070.2379.49
4.3.20.0000.2209.49
4.3.10.0000.2579.49
4.3.00.0000.2439.49

preferences:
43.74 ms | 401 KiB | 5 Q