3v4l.org

run code in 300+ PHP versions simultaneously
<?php $length = 32; $bytes = openssl_random_pseudo_bytes($length * 2); echo substr(str_replace(array('/', '+', '='), '', base64_encode($bytes)), 0, $length);

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)
8.3.40.0100.00618.79
8.3.30.0120.00620.20
8.3.20.0080.00020.27
8.3.10.0000.00721.95
8.3.00.0040.00422.51
8.2.170.0170.00322.96
8.2.160.0110.00320.43
8.2.150.0000.00824.18
8.2.140.0050.00324.66
8.2.130.0130.00626.16
8.2.120.0070.00019.77
8.2.110.0060.00322.13
8.2.100.0110.00019.27
8.2.90.0040.00419.14
8.2.80.0030.00517.97
8.2.70.0030.00617.63
8.2.60.0070.00317.90
8.2.50.0040.00718.07
8.2.40.0040.00418.09
8.2.30.0000.00818.05
8.2.20.0030.00517.50
8.2.10.0040.00417.77
8.2.00.0070.00017.61
8.1.270.0050.00320.33
8.1.260.0030.00526.35
8.1.250.0000.00728.09
8.1.240.0030.00723.96
8.1.230.0070.00319.15
8.1.220.0080.00017.74
8.1.210.0000.00918.77
8.1.200.0000.01017.23
8.1.190.0040.00417.53
8.1.180.0030.00518.62
8.1.170.0080.00018.59
8.1.160.0000.00722.05
8.1.150.0050.00218.61
8.1.140.0000.00817.26
8.1.130.0040.00417.81
8.1.120.0070.00017.43
8.1.110.0000.00717.33
8.1.100.0000.00817.38
8.1.90.0000.00717.26
8.1.80.0000.00717.29
8.1.70.0030.00317.35
8.1.60.0030.00617.53
8.1.50.0040.00417.50
8.1.40.0030.00617.50
8.1.30.0000.00717.54
8.1.20.0000.00817.64
8.1.10.0040.00417.47
8.1.00.0040.00417.48
8.0.300.0020.00518.77
8.0.290.0040.00417.16
8.0.280.0030.00318.25
8.0.270.0040.00417.07
8.0.260.0000.00616.72
8.0.250.0040.00416.93
8.0.240.0040.00416.94
8.0.230.0070.00016.82
8.0.220.0030.00316.90
8.0.210.0030.00316.89
8.0.200.0040.00416.83
8.0.190.0030.00616.83
8.0.180.0050.00316.93
8.0.170.0030.00516.93
8.0.160.0040.00416.77
8.0.150.0070.00016.88
8.0.140.0070.00016.86
8.0.130.0000.00513.31
8.0.120.0040.00416.76
8.0.110.0040.00416.90
8.0.100.0050.00316.86
8.0.90.0040.00416.78
8.0.80.0150.00316.93
8.0.70.0040.00416.97
8.0.60.0050.00216.83
8.0.50.0090.00016.86
8.0.30.0120.00616.98
8.0.20.0120.00617.40
8.0.10.0040.00416.88
8.0.00.0130.00716.77
7.4.330.0000.00515.00
7.4.320.0060.00016.48
7.4.300.0060.00016.45
7.4.290.0000.00716.44
7.4.280.0000.00616.46
7.4.270.0000.00716.59
7.4.260.0000.00916.48
7.4.250.0040.00416.58
7.4.240.0040.00316.52
7.4.230.0030.00316.64
7.4.220.0070.01216.63
7.4.210.0080.00616.58
7.4.200.0000.00716.59
7.4.190.0030.00316.71
7.4.160.0150.00916.53
7.4.150.0080.01617.40
7.4.140.0080.01317.86
7.4.130.0090.00916.56
7.4.120.0100.00616.45
7.4.110.0080.00816.29
7.4.100.0060.01216.58
7.4.90.0090.00916.59
7.4.80.0160.00019.39
7.4.70.0090.01216.44
7.4.60.0000.01516.38
7.4.50.0050.00316.53
7.4.40.0100.00622.77
7.4.30.0030.01216.32
7.4.00.0070.01115.02
7.3.330.0000.00513.00
7.3.320.0050.00013.12
7.3.310.0060.00016.19
7.3.300.0030.00316.21
7.3.290.0070.00716.30
7.3.280.0100.00716.25
7.3.270.0070.01017.40
7.3.260.0060.01216.46
7.3.250.0090.00916.48
7.3.240.0000.01816.25
7.3.230.0140.00416.39
7.3.210.0060.01016.61
7.3.200.0090.01219.39
7.3.190.0110.00816.48
7.3.180.0100.00616.46
7.3.170.0140.00316.33
7.3.160.0110.00516.21
7.3.120.0060.01014.98
7.3.110.0090.00614.63
7.3.100.0080.00814.58
7.3.90.0030.00614.98
7.3.80.0030.00914.79
7.3.70.0000.00914.75
7.3.60.0130.00314.85
7.3.50.0110.00614.71
7.3.40.0030.00914.85
7.3.30.0040.01114.58
7.3.20.0060.00616.78
7.3.10.0030.01016.39
7.3.00.0070.00716.62
7.2.330.0130.00316.57
7.2.320.0170.00716.34
7.2.310.0090.00916.24
7.2.300.0060.01116.47
7.2.290.0040.01216.50
7.2.250.0070.01014.89
7.2.240.0090.00914.98
7.2.230.0070.00715.04
7.2.220.0000.01114.84
7.2.210.0000.01415.09
7.2.200.0030.01014.84
7.2.190.0110.00715.03
7.2.180.0120.00314.65
7.2.170.0080.00414.92
7.2.00.0030.00619.61
7.1.330.0070.00715.84
7.1.320.0070.00715.46
7.1.310.0070.00715.48
7.1.300.0100.00715.56
7.1.290.0030.00815.61
7.1.280.0000.01515.48
7.1.270.0030.01015.53
7.1.260.0030.00915.41
7.1.70.0000.01417.21
7.1.60.0170.00719.40
7.1.50.0030.01917.15
7.1.00.0000.05022.32
7.0.200.0060.00316.92
7.0.140.0070.07322.07
7.0.110.0100.08019.98
7.0.100.0030.05319.97
7.0.90.0370.04719.94
7.0.80.0430.06720.05
7.0.70.0570.04319.88
7.0.60.0400.04720.02
7.0.50.0530.07020.09
7.0.40.0070.08019.79
7.0.30.0100.07019.68
7.0.20.0130.06719.81
7.0.10.0030.04319.87
7.0.00.0000.07019.70
5.6.280.0070.07020.93
5.6.260.0130.06720.59
5.6.250.0030.04020.90
5.6.240.0030.04020.69
5.6.230.0130.06720.67
5.6.220.0030.03720.66
5.6.210.0100.08020.54
5.6.200.0100.04020.71
5.6.190.0030.05320.55
5.6.180.0130.04320.68
5.6.170.0100.06720.65
5.6.160.0130.07320.72
5.6.150.0070.05020.64
5.6.140.0030.06720.61
5.6.130.0070.07320.64
5.6.120.0100.04720.63
5.6.110.0070.07320.86
5.6.100.0030.05020.44
5.6.90.0070.07020.56
5.6.80.0030.04719.96
5.6.70.0030.03720.05
5.6.60.0070.05319.96
5.6.50.0000.04019.93
5.6.40.0000.04319.94
5.6.30.0030.06319.91
5.6.20.0130.07320.03
5.6.10.0000.06720.07
5.6.00.0170.05720.23
5.5.380.0070.04717.60
5.5.370.0100.07317.51
5.5.360.0070.07317.63
5.5.350.0070.08317.56
5.5.340.0100.07718.20
5.5.330.0100.04318.16
5.5.320.0070.08018.16
5.5.310.0130.04018.11
5.5.300.0170.03717.95
5.5.290.0070.04017.82
5.5.280.0100.07318.18
5.5.270.0030.04318.30
5.5.260.0000.05318.30
5.5.250.0070.04017.67
5.5.240.0100.06317.55
5.5.230.0030.03317.58
5.5.220.0030.04317.28
5.5.210.0130.06017.43
5.5.200.0030.05717.21
5.5.190.0070.07717.44
5.5.180.0000.08017.22
5.5.160.0030.04317.50
5.5.150.0070.04017.30
5.5.140.0030.04317.53
5.5.130.0070.06017.30
5.5.120.0000.04317.43
5.5.110.0100.07717.25
5.5.100.0070.07717.13
5.5.90.0170.05017.01
5.5.80.0000.04317.44
5.5.70.0130.06717.20
5.5.60.0070.04017.25
5.5.50.0070.04717.43
5.5.40.0070.03717.40
5.5.30.0070.08017.39
5.5.20.0100.07017.08
5.5.10.0130.06317.23
5.5.00.0130.06717.19
5.4.450.0030.05319.27
5.4.440.0030.08719.28
5.4.430.0070.06319.40
5.4.420.0000.08719.27
5.4.410.0100.03719.46
5.4.400.0130.03019.14
5.4.390.0000.04719.18
5.4.380.0030.04019.07
5.4.370.0070.07719.00
5.4.360.0000.04019.03
5.4.350.0030.06019.18
5.4.340.0070.07019.22
5.4.320.0030.06019.01
5.4.310.0030.05019.18
5.4.300.0030.08019.16
5.4.290.0000.04319.18
5.4.280.0070.08019.07
5.4.270.0030.05719.02
5.4.260.0100.07719.04
5.4.250.0030.06319.04
5.4.240.0170.04319.27
5.4.230.0000.08718.99
5.4.220.0030.05319.17
5.4.210.0070.06018.99
5.4.200.0070.05019.01
5.4.190.0070.04319.07
5.4.180.0000.04718.99
5.4.170.0030.04718.93
5.4.160.0130.06319.05
5.4.150.0130.04019.20
5.4.140.0100.06316.34
5.4.130.0070.06716.25
5.4.120.0000.04316.34
5.4.110.0030.07716.37
5.4.100.0100.07016.29
5.4.90.0070.03716.51
5.4.80.0000.07316.47
5.4.70.0030.04016.51
5.4.60.0030.03716.47
5.4.50.0000.04316.16
5.4.40.0070.05316.51
5.4.30.0030.05316.50
5.4.20.0070.06016.33
5.4.10.0030.03716.34
5.4.00.0070.04315.91
5.3.290.0070.08014.74
5.3.280.0100.06714.45
5.3.270.0070.06714.47
5.3.260.0070.03714.68
5.3.250.0030.04714.46
5.3.240.0030.05314.48
5.3.230.0030.04314.52
5.3.220.0100.06314.55
5.3.210.0130.04014.48
5.3.200.0030.06314.66
5.3.190.0100.04314.35
5.3.180.0030.03714.52
5.3.170.0070.03714.50
5.3.160.0070.03714.57
5.3.150.0200.03714.40
5.3.140.0130.05714.41
5.3.130.0070.08314.37
5.3.120.0030.07014.39
5.3.110.0130.03014.42
5.3.100.0030.07313.88
5.3.90.0000.04314.08
5.3.80.0000.04314.09
5.3.70.0030.08313.80
5.3.60.0000.04013.89
5.3.50.0070.03313.96
5.3.40.0100.04013.84
5.3.30.0100.03713.70
5.3.20.0100.02313.57
5.3.10.0070.05313.53
5.3.00.0000.03713.70
5.2.170.0070.03712.21
5.2.160.0100.05712.21
5.2.150.0030.06312.21
5.2.140.0000.06312.21
5.2.130.0030.05712.21
5.2.120.0130.03312.21
5.2.110.0000.02712.21
5.2.100.0000.03012.21
5.2.90.0030.02712.21
5.2.80.0070.03012.21
5.2.70.0070.03312.21
5.2.60.0030.03712.21
5.2.50.0070.02712.21
5.2.40.0030.03012.21
5.2.30.0000.03312.21
5.2.20.0000.03312.21
5.2.10.0030.05712.21
5.2.00.0100.03312.21
5.1.60.0030.04712.21
5.1.50.0070.03312.21
5.1.40.0000.02712.21
5.1.30.0070.05312.21
5.1.20.0100.01712.21
5.1.10.0030.02712.21
5.1.00.0000.02712.21
5.0.50.0000.02012.21
5.0.40.0000.04012.21
5.0.30.0000.04312.21
5.0.20.0000.02012.21
5.0.10.0030.01712.21
5.0.00.0000.03312.21
4.4.90.0000.01712.21
4.4.80.0070.02312.21
4.4.70.0000.01312.21
4.4.60.0000.03012.21
4.4.50.0000.01712.21
4.4.40.0030.03012.21
4.4.30.0070.02712.21
4.4.20.0030.01012.21
4.4.10.0000.04012.21
4.4.00.0000.02312.21
4.3.110.0070.02312.21
4.3.100.0030.01012.21
4.3.90.0030.02312.21
4.3.80.0000.02312.21
4.3.70.0000.01312.21
4.3.60.0000.01312.21
4.3.50.0030.01312.21
4.3.40.0000.02712.21
4.3.30.0030.02712.21
4.3.20.0000.01312.21
4.3.10.0070.01012.21
4.3.00.0030.01012.21

preferences:
46.27 ms | 400 KiB | 5 Q