3v4l.org

run code in 300+ PHP versions simultaneously
<?php function rand_string( $length ) { $chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"; return substr(str_shuffle($chars),0,$length); } echo rand_string(8);

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)
7.4.00.0060.01214.85
7.3.120.0090.00814.76
7.3.110.0090.00914.39
7.3.100.0070.00714.88
7.3.90.0050.00814.56
7.3.80.0080.00614.72
7.3.70.0080.00214.72
7.3.60.0110.00114.73
7.3.50.0030.01214.79
7.3.40.0060.00314.65
7.3.30.0050.01014.74
7.3.20.0130.00216.59
7.3.10.0040.00916.46
7.3.00.0070.00716.48
7.2.250.0080.01014.89
7.2.240.0050.01215.20
7.2.230.0080.00915.07
7.2.220.0060.00514.85
7.2.210.0100.00515.03
7.2.200.0050.01214.96
7.2.190.0050.01114.88
7.2.180.0100.00814.92
7.2.170.0030.01114.91
7.2.130.0040.00716.63
7.2.120.0060.00916.32
7.2.110.0120.00916.73
7.2.100.0120.00716.57
7.2.90.0050.00516.60
7.2.80.0060.00816.72
7.2.70.0050.00816.54
7.2.60.0040.01116.61
7.2.50.0040.01116.73
7.2.40.0050.00716.59
7.2.30.0030.01316.61
7.2.20.0060.00816.76
7.2.10.0060.00716.55
7.2.00.0080.00717.65
7.1.330.0060.00915.73
7.1.320.0030.01015.78
7.1.310.0050.00815.82
7.1.300.0020.01315.65
7.1.290.0040.00915.67
7.1.280.0060.00615.82
7.1.270.0090.00615.69
7.1.260.0090.00515.80
7.1.250.0110.01215.64
7.1.240.0040.01115.97
7.1.230.0070.00715.77
7.1.220.0000.01115.77
7.1.210.0090.00615.61
7.1.200.0070.00715.60
7.1.190.0140.00015.47
7.1.180.0060.00615.63
7.1.170.0000.01015.88
7.1.160.0060.00615.91
7.1.150.0070.00715.51
7.1.140.0070.01015.88
7.1.130.0040.01115.72
7.1.120.0120.00015.47
7.1.110.0030.00815.80
7.1.100.0000.01616.88
7.1.90.0110.00415.92
7.1.80.0070.00315.88
7.1.70.0050.00716.49
7.1.60.0050.01217.38
7.1.50.0060.01016.43
7.1.40.0050.00515.48
7.1.30.0030.00715.71
7.1.20.0070.00315.84
7.1.10.0040.00415.74
7.1.00.0050.03919.06
7.0.330.0000.01415.51
7.0.320.0060.00615.25
7.0.310.0040.01115.29
7.0.300.0080.00415.20
7.0.290.0060.00615.04
7.0.280.0000.00815.35
7.0.270.0000.00915.46
7.0.260.0000.00915.16
7.0.250.0080.00015.33
7.0.240.0040.00815.30
7.0.230.0030.00615.11
7.0.220.0040.00815.54
7.0.210.0030.00615.27
7.0.200.0060.00616.01
7.0.190.0030.00715.27
7.0.180.0060.00615.15
7.0.170.0000.00815.46
7.0.160.0030.00915.21
7.0.150.0100.00415.31
7.0.140.0060.04018.73
7.0.130.0060.00615.24
7.0.120.0100.00715.16
7.0.110.0070.00715.46
7.0.100.0060.00615.40
7.0.90.0040.00715.14
7.0.80.0070.00315.46
7.0.70.0000.01215.23
7.0.60.0070.04017.62
7.0.50.0080.03316.52
7.0.40.0030.02816.87
7.0.30.0120.04516.85
7.0.20.0180.02516.76
7.0.10.0070.03416.84
7.0.00.0020.02816.73
5.6.380.0000.01514.32
5.6.370.0060.00914.52
5.6.360.0060.00613.91
5.6.350.0000.00814.21
5.6.340.0070.00714.11
5.6.330.0030.01014.26
5.6.320.0070.00714.10
5.6.310.0060.00914.53
5.6.300.0070.01014.59
5.6.290.0070.00314.43
5.6.280.0060.03817.62
5.6.270.0030.01414.34
5.6.260.0030.01214.15
5.6.250.0070.00714.27
5.6.240.0070.00614.11
5.6.230.0040.00714.24
5.6.220.0000.01114.27
5.6.210.0070.04217.48
5.6.200.0070.02716.22
5.6.190.0070.04717.26
5.6.180.0160.03017.32
5.6.170.0150.03417.35
5.6.160.0030.03717.31
5.6.150.0040.03216.23
5.6.140.0050.02916.13
5.6.130.0070.04016.18
5.6.120.0090.04617.71
5.6.110.0080.04317.74
5.6.100.0090.04117.50
5.6.90.0090.04517.81
5.6.80.0060.04517.19
5.6.70.2080.02617.26
5.6.60.0030.00813.97
5.6.50.0000.01313.97
5.6.40.0030.00914.16
5.6.30.0060.00613.91
5.6.20.0070.00713.99
5.6.10.0070.00314.11
5.6.00.0090.00613.98
5.5.380.0030.00711.20
5.5.370.0040.00411.08
5.5.360.0090.00310.90
5.5.350.0070.04615.67
5.5.340.0100.04114.53
5.5.330.0070.03215.77
5.5.320.0240.03715.63
5.5.310.0130.02115.55
5.5.300.0050.02314.45
5.5.290.0080.02314.55
5.5.280.0030.03515.83
5.5.270.0060.04315.98
5.5.260.0060.04315.92
5.5.250.0100.01715.79
5.5.240.0080.03715.59
5.5.230.0070.00011.02
5.5.220.0000.00811.08
5.5.210.0060.00010.98
5.5.200.0000.00611.16
5.5.190.0070.00311.06
5.5.180.0030.00710.90
5.5.170.0060.00610.98
5.5.160.0030.00310.90
5.5.150.0060.00011.06
5.5.140.0040.00810.90
5.5.130.0030.00910.91
5.5.120.0060.00611.27
5.5.110.0100.00011.12
5.5.100.0040.00710.97
5.5.90.0030.00310.90
5.5.80.0090.00310.96
5.5.70.0110.00010.90
5.5.60.0050.00511.04
5.5.50.0040.00810.90
5.5.40.0030.00910.90
5.5.30.0030.00910.90
5.5.20.0000.01010.90
5.5.10.0000.01011.05
5.5.00.0080.00410.90
5.4.450.0390.01915.40
5.4.440.0320.02715.29
5.4.430.0440.01815.25
5.4.420.0120.01715.22
5.4.410.0310.01715.20
5.4.400.0180.03414.85
5.4.390.0160.03114.92
5.4.380.0120.02714.71
5.4.370.0180.02514.88
5.4.360.0110.03014.83
5.4.350.0230.02514.74
5.4.340.0280.02014.79
5.4.330.0110.00010.93
5.4.320.0090.02011.70
5.4.310.0070.02511.73
5.4.300.0040.01911.70
5.4.290.0070.02111.70
5.4.280.0040.02711.79
5.4.270.0060.02011.65
5.4.260.0040.02511.65
5.4.250.0050.02211.69
5.4.240.0060.02211.76
5.4.230.0040.02011.65
5.4.220.0070.01711.65
5.4.210.0030.02311.66
5.4.200.0040.02111.64
5.4.190.0100.02211.65
5.4.180.0120.02011.63
5.4.170.0120.02011.64
5.4.160.0080.02511.64
5.4.150.0120.02111.63
5.4.140.0140.02111.57
5.4.130.0070.02511.53
5.4.120.0070.02611.61
5.4.110.0100.02411.44
5.4.100.0090.02711.48
5.4.90.0130.02011.48
5.4.80.0090.02611.44
5.4.70.0080.02711.45
5.4.60.0100.02411.44
5.4.50.0090.02411.44
5.4.40.0120.02311.47
5.4.30.0070.02511.43
5.4.20.0070.02611.44
5.4.10.0080.02511.46
5.4.00.0100.02211.24
5.3.290.0060.01911.85
5.3.280.0020.02311.80
5.3.270.0110.02411.81
5.3.260.0070.02811.81
5.3.250.0090.02511.81
5.3.240.0110.02411.81
5.3.230.0090.02511.80
5.3.220.0070.02611.79
5.3.210.0090.02711.79
5.3.200.0090.02711.79
5.3.190.0110.02811.79
5.3.180.0070.02911.79
5.3.170.0090.02611.78
5.3.160.0100.02611.78
5.3.150.0130.02711.79
5.3.140.0120.02411.78
5.3.130.0100.02811.78
5.3.120.0100.02711.78
5.3.110.0130.03911.78
5.3.100.0090.02611.51
5.3.90.0110.02311.49
5.3.80.0090.02511.49
5.3.70.0100.02311.49
5.3.60.0090.02511.48
5.3.50.0110.02311.45
5.3.40.0080.02811.45
5.3.30.0080.02411.44
5.3.20.0130.02211.32
5.3.10.0060.02511.30
5.3.00.0120.02211.29
5.2.170.0090.01810.05
5.2.160.0080.02110.05
5.2.150.0070.02010.05
5.2.140.0100.01810.05
5.2.130.0090.01810.03
5.2.120.0060.02110.03
5.2.110.0070.02110.03
5.2.100.0080.01910.03
5.2.90.0080.01910.03
5.2.80.0080.02110.02
5.2.70.0180.01810.02
5.2.60.0070.02010.00
5.2.50.0110.0179.99
5.2.40.0080.0199.97
5.2.30.0080.0199.96
5.2.20.0080.0209.96
5.2.10.0070.0219.91
5.2.00.0090.0179.84
5.1.60.0090.0189.48
5.1.50.0100.0169.48
5.1.40.0070.0179.47
5.1.30.0090.0179.64
5.1.20.0090.0169.66
5.1.10.0090.0199.52
5.1.00.0070.0199.52
5.0.50.0070.0148.76
5.0.40.0060.0138.69
5.0.30.0080.0198.59
5.0.20.0070.0158.58
5.0.10.0050.0168.56
5.0.00.0070.0198.56
4.4.90.0040.0137.84
4.4.80.0050.0107.83
4.4.70.0040.0137.83
4.4.60.0040.0127.83
4.4.50.0040.0127.84
4.4.40.0080.0147.80
4.4.30.0050.0117.83
4.4.20.0070.0107.87
4.4.10.0060.0117.87
4.4.00.0070.0147.83
4.3.110.0040.0137.78
4.3.100.0050.0107.78
4.3.90.0070.0107.77
4.3.80.0040.0167.74
4.3.70.0040.0137.76
4.3.60.0050.0117.76
4.3.50.0050.0117.76
4.3.40.0050.0157.72
4.3.30.0050.0117.10
4.3.20.0060.0107.08
4.3.10.0060.0107.07
4.3.00.0110.00613.18

preferences:
39.29 ms | 401 KiB | 5 Q