3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo random_string(32,0,0); function random_string($charcount = 8, $mode = 0, $capsonly = 0) { /* 0 = alphanumeric 1 = letters only 2 = numbers only */ $chars_alpha_cap = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'; $chars_alpha_low = 'abcdefghijklmnopqrstuvwxyz'; $chars_num = '0123456789'; if ($capsonly) { $chars_alpha_cap = ''; $chars_alpha_low = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'; } switch ($mode) { case 1: $chars = $chars_alpha_cap . $chars_alpha_low; break; case 2: $chars = $chars_num; break; default: $chars = $chars_alpha_cap . $chars_alpha_low . $chars_num; } for ($i = 0; $i < $charcount; $i++) { $rand .= $chars[mt_rand(0, strlen($chars) - 1)]; } return $rand; }

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)
7.4.00.0070.01114.85
7.3.120.0070.01315.02
7.3.110.0140.00314.83
7.3.100.0120.00414.67
7.3.90.0040.00715.14
7.3.80.0070.00714.94
7.3.70.0030.01214.69
7.3.60.0070.00714.95
7.3.50.0030.00614.99
7.3.40.0040.00714.73
7.3.30.0090.00615.07
7.3.20.0060.00916.75
7.3.10.0080.00616.56
7.3.00.0070.00616.45
7.2.250.0060.00915.07
7.2.240.0060.00915.29
7.2.230.0070.01015.08
7.2.220.0060.01015.22
7.2.210.0000.01315.09
7.2.200.0060.01215.20
7.2.190.0000.01715.01
7.2.180.0100.00715.14
7.2.170.0000.01114.81
7.2.130.0100.01016.81
7.2.120.0080.01016.81
7.2.110.0110.00816.86
7.2.100.0050.00816.97
7.2.90.0090.00716.84
7.2.80.0070.00916.92
7.2.70.0090.00916.78
7.2.60.0110.00716.82
7.2.50.0170.00616.84
7.2.40.0140.00816.71
7.2.30.0050.01216.88
7.2.20.0070.00816.77
7.2.10.0130.00616.65
7.2.00.0100.01017.52
7.1.330.0160.00015.81
7.1.320.0060.01015.68
7.1.310.0030.01016.14
7.1.300.0000.01115.71
7.1.290.0090.00615.69
7.1.280.0060.00915.97
7.1.270.0060.00915.52
7.1.260.0060.00615.83
7.1.250.0120.00715.78
7.1.70.0000.00917.21
7.1.60.0100.01619.70
7.1.50.0070.01717.02
7.1.00.0030.07722.57
7.0.200.0090.00016.84
7.0.140.0070.07021.92
7.0.100.0130.07319.93
7.0.90.0200.07019.92
7.0.80.0130.04319.98
7.0.70.0070.06319.96
7.0.60.0200.06019.93
7.0.50.0300.06320.32
7.0.40.0030.08320.19
7.0.30.0130.07320.15
7.0.20.0130.07720.14
7.0.10.0130.07320.10
7.0.00.0030.05020.10
5.6.280.0000.07321.03
5.6.250.0130.07720.64
5.6.240.0070.04320.76
5.6.230.0030.04320.72
5.6.220.0070.08320.68
5.6.210.0100.04020.55
5.6.200.0130.03720.98
5.6.190.0100.08021.08
5.6.180.0200.03721.14
5.6.170.0030.07021.05
5.6.160.0170.07721.09
5.6.150.0100.09321.08
5.6.140.0030.09021.02
5.6.130.0200.07021.01
5.6.120.0170.06321.14
5.6.110.0030.05721.00
5.6.100.0070.08020.92
5.6.90.0070.08020.94
5.6.80.0070.07720.44
5.6.70.0070.08020.52
5.6.60.0100.07320.48
5.6.50.0030.08320.52
5.6.40.0070.07320.47
5.6.30.0200.06720.43
5.6.20.0030.04720.54
5.6.10.0200.06320.43
5.6.00.0070.06020.31
5.5.380.0070.07320.43
5.5.370.0100.06720.57
5.5.360.0100.06320.51
5.5.350.0130.07020.46
5.5.340.0130.06720.62
5.5.330.0070.06320.83
5.5.320.0030.08020.94
5.5.310.0030.08320.86
5.5.300.0070.08020.89
5.5.290.0070.08020.92
5.5.280.0130.08020.90
5.5.270.0100.08020.92
5.5.260.0030.06720.89
5.5.250.0030.07320.71
5.5.240.0000.09020.15
5.5.230.0200.06320.30
5.5.220.0030.08320.28
5.5.210.0070.07720.31
5.5.200.0100.07320.12
5.5.190.0000.06020.18
5.5.180.0000.08720.15
5.5.160.0070.05020.24
5.5.150.0100.08020.16
5.5.140.0100.06720.13
5.5.130.0030.06720.27
5.5.120.0030.07720.18
5.5.110.0100.07320.08
5.5.100.0100.08020.17
5.5.90.0100.07320.11
5.5.80.0030.08720.19
5.5.70.0130.07720.15
5.5.60.0030.08019.93
5.5.50.0130.07320.15
5.5.40.0070.07719.96
5.5.30.0100.07720.04
5.5.20.0030.08320.11
5.5.10.0070.08019.98
5.5.00.0070.07320.09
5.4.450.0100.05719.33
5.4.440.0130.07719.42
5.4.430.0070.07319.36
5.4.420.0070.07319.48
5.4.410.0000.07319.07
5.4.400.0100.06719.14
5.4.390.0070.07718.91
5.4.380.0100.07319.14
5.4.370.0100.07319.21
5.4.360.0030.09019.16
5.4.350.0070.08019.13
5.4.340.0030.08018.86
5.4.320.0000.08318.91
5.4.310.0030.05019.05
5.4.300.0130.06719.14
5.4.290.0170.06019.16
5.4.280.0070.07319.04
5.4.270.0030.08319.09
5.4.260.0100.07718.84
5.4.250.0070.07319.16
5.4.240.0030.04019.15
5.4.230.0130.07718.94
5.4.220.0100.07319.03
5.4.210.0130.06019.16
5.4.200.0070.07719.18
5.4.190.0130.07318.94
5.4.180.0070.06319.04
5.4.170.0170.08019.02
5.4.160.0070.08018.89
5.4.150.0030.08319.03
5.4.140.0070.06716.50
5.4.130.0130.06716.41
5.4.120.0100.05016.46
5.4.110.0100.06716.34
5.4.100.0130.06716.46
5.4.90.0070.04016.42
5.4.80.0070.04016.50
5.4.70.0000.08016.46
5.4.60.0030.07316.49
5.4.50.0100.07016.32
5.4.40.0000.07716.54
5.4.30.0070.07016.44
5.4.20.0130.06016.29
5.4.10.0030.08016.46
5.4.00.0000.08015.77
5.3.290.0130.06714.71
5.3.280.0100.04714.66
5.3.270.0100.07314.66
5.3.260.0070.06714.54
5.3.250.0030.09714.67
5.3.240.0070.08014.61
5.3.230.0070.07014.65
5.3.220.0130.07014.70
5.3.210.0070.08014.55
5.3.200.0030.08014.66
5.3.190.0070.07714.70
5.3.180.0030.05714.63
5.3.170.0000.06014.58
5.3.160.0070.06314.68
5.3.150.0070.07314.64
5.3.140.0030.07714.48
5.3.130.0070.07014.47
5.3.120.0100.07714.52
5.3.110.0070.08314.61
5.3.100.0070.08014.07
5.3.90.0070.07713.97
5.3.80.0030.07014.08
5.3.70.0100.07014.14
5.3.60.0000.05014.03
5.3.50.0070.06014.01
5.3.40.0070.07313.90
5.3.30.0030.07313.82
5.3.20.0100.06013.71
5.3.10.0030.05313.61
5.3.00.0100.05313.69
5.2.170.0100.06011.28
5.2.160.0070.05011.05
5.2.150.0100.06711.17
5.2.140.0130.05011.05
5.2.130.0070.05311.15
5.2.120.0030.06311.21
5.2.110.0030.06711.20
5.2.100.0070.05711.21
5.2.90.0030.05011.15
5.2.80.0130.05011.19
5.2.70.0070.07311.05
5.2.60.0070.05311.04
5.2.50.0070.06311.09
5.2.40.0000.06311.13
5.2.30.0000.06711.11
5.2.20.0030.04311.03
5.2.10.0070.05311.00
5.2.00.0000.06310.67
5.1.60.0030.04010.67
5.1.50.0070.05710.67
5.1.40.0070.05310.67
5.1.30.0000.06310.67
5.1.20.0000.06310.67
5.1.10.0030.05710.67
5.1.00.0100.05010.67
5.0.50.0030.05310.67
5.0.40.0070.03010.67
5.0.30.0030.06710.67
5.0.20.0030.04310.67
5.0.10.0030.02710.67
5.0.00.0000.06710.67
4.4.90.0000.03010.67
4.4.80.0000.03710.67
4.4.70.0030.02310.67
4.4.60.0000.03710.67
4.4.50.0000.03010.67
4.4.40.0030.05010.67
4.4.30.0030.03310.67
4.4.20.0030.03710.67
4.4.10.0070.01710.67
4.4.00.0030.05010.67
4.3.110.0030.02710.67
4.3.100.0070.03010.67
4.3.90.0000.03010.67
4.3.80.0000.03710.67
4.3.70.0070.03010.67
4.3.60.0030.03310.67
4.3.50.0000.03710.67
4.3.40.0000.05310.67
4.3.30.0030.03310.67
4.3.20.0030.01710.67
4.3.10.0000.03710.67
4.3.00.0000.03710.67

preferences:
41.24 ms | 400 KiB | 5 Q