3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo $str = substr('.gif', 1);

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)
8.3.60.0170.00318.30
8.3.50.0120.00521.92
8.3.40.0170.00318.85
8.3.30.0110.00418.92
8.3.20.0040.00420.20
8.3.10.0040.00421.84
8.3.00.0080.00022.44
8.2.180.0180.00316.61
8.2.170.0060.00922.96
8.2.160.0070.00719.11
8.2.150.0040.00424.18
8.2.140.0050.00324.66
8.2.130.0140.00426.16
8.2.120.0030.00619.42
8.2.110.0030.00722.11
8.2.100.0000.01217.84
8.2.90.0050.00319.70
8.2.80.0040.00417.97
8.2.70.0060.00317.38
8.2.60.0000.00718.04
8.2.50.0030.00518.07
8.2.40.0040.00419.94
8.2.30.0070.00317.96
8.2.20.0040.00417.58
8.2.10.0000.00717.55
8.2.00.0040.00417.54
8.1.280.0110.00725.92
8.1.270.0150.00322.23
8.1.260.0050.00326.35
8.1.250.0080.00028.09
8.1.240.0080.00822.48
8.1.230.0070.00420.96
8.1.220.0000.00817.74
8.1.210.0040.00418.89
8.1.200.0030.00717.23
8.1.190.0000.00717.51
8.1.180.0030.00518.63
8.1.170.0000.00818.48
8.1.160.0050.00222.03
8.1.150.0040.00418.61
8.1.140.0050.00217.36
8.1.130.0040.00417.85
8.1.120.0030.00317.36
8.1.110.0000.00817.38
8.1.100.0000.00717.35
8.1.90.0030.00317.29
8.1.80.0040.00417.25
8.1.70.0030.00517.36
8.1.60.0030.00617.48
8.1.50.0000.00717.48
8.1.40.0050.00317.48
8.1.30.0030.00617.38
8.1.20.0070.00017.50
8.1.10.0050.00217.41
8.1.00.0000.00817.45
8.0.300.0030.00319.89
8.0.290.0030.00317.16
8.0.280.0000.00818.43
8.0.270.0030.00317.20
8.0.260.0030.00316.82
8.0.250.0030.00316.98
8.0.240.0000.00716.91
8.0.230.0070.00016.84
8.0.220.0000.00716.70
8.0.210.0030.00316.70
8.0.200.0040.00416.79
8.0.190.0080.00016.90
8.0.180.0000.00716.81
8.0.170.0030.00516.83
8.0.160.0040.00416.80
8.0.150.0000.00816.67
8.0.140.0000.00716.80
8.0.130.0030.00313.25
8.0.120.0000.00816.62
8.0.110.0050.00216.84
8.0.100.0040.00416.86
8.0.90.0040.00416.70
8.0.80.0110.00416.82
8.0.70.0070.00016.71
8.0.60.0040.00416.73
8.0.50.0000.00716.71
8.0.30.0080.01116.86
8.0.20.0070.01117.40
8.0.10.0070.00016.79
8.0.00.0080.01016.51
7.4.330.0030.00515.00
7.4.320.0000.00716.39
7.4.300.0030.00316.57
7.4.290.0070.00016.39
7.4.280.0000.00716.32
7.4.270.0000.00716.41
7.4.260.0040.00416.51
7.4.250.0050.00216.39
7.4.240.0000.00716.49
7.4.230.0000.00716.62
7.4.220.0100.00516.43
7.4.210.0060.00816.43
7.4.200.0000.00716.24
7.4.190.0070.00016.38
7.4.160.0130.00316.20
7.4.150.0100.00617.40
7.4.140.0090.00917.86
7.4.130.0090.00816.44
7.4.120.0100.00716.40
7.4.110.0100.00716.50
7.4.100.0100.00716.41
7.4.90.0100.00716.47
7.4.80.0090.00619.39
7.4.70.0040.01416.57
7.4.60.0110.00716.46
7.4.50.0050.00016.18
7.4.40.0070.00722.77
7.4.30.0070.01316.30
7.4.00.0000.01415.02
7.3.330.0050.00012.96
7.3.320.0050.00012.96
7.3.310.0030.00316.12
7.3.300.0000.00615.97
7.3.290.0030.01716.24
7.3.280.0070.01016.11
7.3.270.0040.01217.40
7.3.260.0140.00716.00
7.3.250.0050.01116.31
7.3.240.0130.00316.14
7.3.230.0150.00716.55
7.3.210.0090.00916.38
7.3.200.0130.00319.39
7.3.190.0030.01316.20
7.3.180.0000.01616.34
7.3.170.0150.00616.27
7.3.160.0110.00516.36
7.3.120.0040.01114.64
7.3.00.0170.00615.51
7.2.330.0070.01016.54
7.2.320.0100.00716.31
7.2.310.0180.00316.43
7.2.300.0070.01116.54
7.2.290.0100.00716.71
7.2.130.0180.00515.79
7.2.120.0100.00815.50
7.2.110.0130.00715.66
7.2.100.0150.00515.84
7.2.90.0080.01015.82
7.2.80.0160.00515.71
7.2.70.0160.00615.88
7.2.60.0120.00815.99
7.2.50.0860.01216.02
7.2.40.0220.00515.83
7.2.30.0210.00815.80
7.2.20.0190.00515.81
7.2.10.0180.00715.70
7.2.00.0160.00415.84
7.1.250.0090.01114.55
7.1.240.0180.00514.69
7.1.230.0190.00914.68
7.1.220.0160.00514.54
7.1.210.0180.00614.73
7.1.200.0180.00914.64
7.1.190.0170.00814.78
7.1.180.0150.00814.66
7.1.170.0230.00914.77
7.1.160.0200.00714.70
7.1.150.0170.00814.63
7.1.140.0160.00714.60
7.1.130.0160.00714.68
7.1.120.0150.00714.53
7.1.110.0160.01114.77
7.1.100.0150.00814.84
7.1.90.0160.00714.79
7.1.80.0150.00714.68
7.1.70.0120.00515.49
7.1.60.0160.00716.43
7.1.50.0170.00815.33
7.1.40.0210.00614.61
7.1.30.0160.00714.55
7.1.20.0260.01014.71
7.1.10.0180.00914.72
7.1.00.0120.03117.34
7.0.330.0120.00713.99
7.0.320.0180.00614.36
7.0.310.0200.00214.37
7.0.300.0160.00514.31
7.0.290.0220.00614.27
7.0.280.0190.00314.38
7.0.270.0210.00514.42
7.0.260.0170.00414.32
7.0.250.0150.00814.06
7.0.240.0200.00614.39
7.0.230.0150.00614.17
7.0.220.0200.00514.37
7.0.210.0160.01014.46
7.0.200.0100.00915.16
7.0.190.0150.00614.19
7.0.180.0750.00514.45
7.0.170.0230.00314.32
7.0.160.0270.00614.43
7.0.150.0250.00514.18
7.0.140.0240.03116.85
7.0.130.0220.00314.37
7.0.120.0180.00914.48
7.0.110.0170.00514.24
7.0.100.0250.00014.55
7.0.90.0250.00214.35
7.0.80.0160.00914.41
7.0.70.0180.00814.42
7.0.60.0180.02916.10
7.0.50.0160.02615.53
7.0.40.0200.03115.64
7.0.30.0170.01815.76
7.0.20.0200.01715.55
7.0.10.0220.02815.58
7.0.00.0110.02315.55
5.6.380.0090.00714.33
5.6.370.0080.00714.19
5.6.360.0090.00514.51
5.6.350.0060.00814.21
5.6.340.0090.00714.25
5.6.330.0020.01414.20
5.6.320.0120.00814.30
5.6.310.0040.00814.35
5.6.300.0080.00214.27
5.6.290.0040.01014.05
5.6.280.0060.02616.48
5.6.270.0060.00514.26
5.6.260.0030.00714.09
5.6.250.0030.01014.29
5.6.240.0040.00614.17
5.6.230.0080.00614.18
5.6.220.0060.00614.22
5.6.210.0040.02816.46
5.6.200.0090.02815.53
5.6.190.0060.03316.18
5.6.180.1100.01816.41
5.6.170.0110.02116.29
5.6.160.0110.02816.31
5.6.150.0070.03015.43
5.6.140.0040.03015.55
5.6.130.0100.02915.56
5.6.120.0080.02616.48
5.6.110.0080.02616.35
5.6.100.0030.03716.41
5.6.90.0130.02416.42
5.6.80.0060.02816.27
5.6.70.1530.01316.20
5.6.60.0080.00614.10
5.6.50.0070.00514.16
5.6.40.0090.00414.05
5.6.30.0070.00614.18
5.6.20.0120.00314.22
5.6.10.0070.00314.29
5.6.00.0060.00814.15
5.5.380.0060.00611.01
5.5.370.0100.00310.89
5.5.360.0080.00410.92
5.5.350.0100.02814.17
5.5.340.0050.02713.30
5.5.330.0080.02914.09
5.5.320.0140.01814.17
5.5.310.0140.02513.97
5.5.300.0050.02113.33
5.5.290.0090.02513.23
5.5.280.0080.02614.28
5.5.270.0050.02014.29
5.5.260.0070.01914.14
5.5.250.0030.02213.97
5.5.240.0040.02713.85
5.5.230.0020.00911.00
5.5.220.0040.00610.80
5.5.210.0100.00210.79
5.5.200.0060.00611.00
5.5.190.0080.00310.73
5.5.180.0080.00410.66
5.5.170.0040.00910.84
5.5.160.0090.00410.79
5.5.150.0040.00710.78
5.5.140.0080.00610.78
5.5.130.0070.00510.88
5.5.120.0080.00410.93
5.5.110.0080.00510.88
5.5.100.0090.00311.02
5.5.90.0080.00310.87
5.5.80.0050.00810.89
5.5.70.0040.00410.58
5.5.60.0090.00210.93
5.5.50.0070.00310.88
5.5.40.0100.00310.94
5.5.30.0030.00610.83
5.5.20.0090.00310.79
5.5.10.0050.00610.90
5.5.00.0030.00710.77
5.4.450.0120.02213.82
5.4.440.0220.02013.73
5.4.430.0140.02113.74
5.4.420.0200.02013.75
5.4.410.0190.02413.59
5.4.400.0520.00313.44
5.4.390.0510.00113.40
5.4.380.0140.01913.40
5.4.370.0410.01813.27
5.4.360.0280.02513.26
5.4.350.0340.02013.41
5.4.340.0330.02113.32
5.4.330.0080.00310.86
5.4.320.0070.01611.26
5.4.310.0050.02011.39
5.4.300.0060.01711.38
5.4.290.0050.01911.33
5.4.280.0110.02911.33
5.4.270.0100.02811.20
5.4.260.0170.03811.25
5.4.250.0070.02211.36
5.4.240.0090.01311.19
5.4.230.0100.01711.22
5.4.220.0070.01711.27
5.4.210.0090.01511.40
5.4.200.0080.02211.21
5.4.190.0070.02011.35
5.4.180.0080.01911.36
5.4.170.0070.02211.38
5.4.160.0070.02411.29
5.4.150.0080.01611.26
5.4.140.0060.01811.27
5.4.130.0080.01811.19
5.4.120.0080.02111.13
5.4.110.0080.02311.23
5.4.100.0070.01911.17
5.4.90.0060.02111.21
5.4.80.0080.01911.23
5.4.70.0060.02211.18
5.4.60.0080.02511.18
5.4.50.0070.01811.15
5.4.40.0090.01711.23
5.4.30.0050.01711.27
5.4.20.0100.02811.15
5.4.10.0070.01511.05
5.4.00.0050.02211.05
5.3.290.0070.01611.29
5.3.280.0070.02211.10
5.3.270.0100.03711.16
5.3.260.0080.01811.19
5.3.250.0060.01911.12
5.3.240.0050.02111.12
5.3.230.0070.02311.12
5.3.220.0050.02411.07
5.3.210.0080.01511.05
5.3.200.0080.01411.03
5.3.190.0050.01711.11
5.3.180.0060.01711.13
5.3.170.0070.02311.22
5.3.160.0070.02411.18
5.3.150.0080.02111.16
5.3.140.0110.02011.06
5.3.130.0070.02111.06
5.3.120.0070.02111.11
5.3.110.0080.01711.10
5.3.100.0070.02910.92
5.3.90.0120.02010.91
5.3.80.0060.01610.88
5.3.70.0080.01410.85
5.3.60.0080.02010.86
5.3.50.0070.01310.84
5.3.40.0050.01810.81
5.3.30.0050.01610.84
5.3.20.0080.01510.81
5.3.10.0070.01610.55
5.3.00.0110.02110.59
5.2.170.0100.0199.20
5.2.160.0060.0139.23
5.2.150.0060.0149.24
5.2.140.0020.0169.23
5.2.130.0030.0169.31
5.2.120.0030.0149.27
5.2.110.0070.0219.27
5.2.100.0050.0159.29
5.2.90.0080.0149.16
5.2.80.0070.0159.14
5.2.70.0060.0169.16
5.2.60.0050.0169.17
5.2.50.0050.0199.11
5.2.40.0060.0179.18
5.2.30.0050.0169.17
5.2.20.0070.0169.11
5.2.10.0070.0169.03
5.2.00.0070.0168.86
5.1.60.0020.0178.47
5.1.50.0060.0128.44
5.1.40.0040.0118.53
5.1.30.0030.0138.58
5.1.20.0060.0108.66
5.1.10.0060.0108.57
5.1.00.0060.0138.51
5.0.50.0030.0127.96
5.0.40.0050.0107.91
5.0.30.0050.0107.85
5.0.20.0020.0117.84
5.0.10.0050.0097.83
5.0.00.0020.0147.83
4.4.90.0020.0087.35
4.4.80.0020.0087.34
4.4.70.0040.0087.34
4.4.60.0040.0077.34
4.4.50.0050.0067.35
4.4.40.0020.0137.33
4.4.30.0020.0087.34
4.4.20.0030.0087.37
4.4.10.0050.0057.38
4.4.00.0030.0117.34
4.3.110.0020.0137.31
4.3.100.0030.0077.31
4.3.90.0040.0087.30
4.3.80.0040.0107.29
4.3.70.0040.0067.30
4.3.60.0030.0077.30
4.3.50.0030.0087.30
4.3.40.0040.0097.27
4.3.30.0020.0116.85
4.3.20.0020.0126.84
4.3.10.0050.0096.83
4.3.00.0040.0107.91

preferences:
37.96 ms | 401 KiB | 5 Q