3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = 'string'; var_dump($var['ola']); $var = 'string'; if (isset($var) && ! is_string($var)) { var_dump($var['ola']); }

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)
8.3.60.0100.01018.43
8.3.50.0070.01221.27
8.3.40.0140.00018.80
8.3.30.0070.00720.16
8.3.20.0040.00420.29
8.3.10.0040.00422.09
8.3.00.0080.00022.52
8.2.180.0120.00316.59
8.2.170.0140.00022.96
8.2.160.0070.00720.52
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0050.00326.16
8.2.120.0080.00019.56
8.2.110.0060.00321.99
8.2.100.0080.00319.25
8.2.90.0070.00019.21
8.2.80.0020.00519.27
8.2.70.0070.00417.38
8.2.60.0040.00418.04
8.2.50.0030.00518.07
8.2.40.0000.00718.28
8.2.30.0000.00818.12
8.2.20.0040.00417.72
8.2.10.0040.00417.62
8.2.00.0000.00817.63
8.1.280.0130.00725.92
8.1.270.0080.00020.26
8.1.260.0000.00726.35
8.1.250.0040.00428.09
8.1.240.0060.00323.77
8.1.230.0060.00618.95
8.1.220.0030.00617.74
8.1.210.0040.00418.77
8.1.200.0060.00317.00
8.1.190.0090.00017.53
8.1.180.0040.00420.25
8.1.170.0040.00418.46
8.1.160.0070.00022.21
8.1.150.0040.00418.46
8.1.140.0000.00717.27
8.1.130.0060.00017.69
8.1.120.0050.00217.39
8.1.110.0000.00717.45
8.1.100.0030.00517.45
8.1.90.0070.00017.45
8.1.80.0000.00817.30
8.1.70.0040.00417.30
8.1.60.0040.00417.46
8.1.50.0040.00417.44
8.1.40.0070.00017.55
8.1.30.0040.00417.53
8.1.20.0000.00817.49
8.1.10.0000.00717.54
8.1.00.0050.00317.52
8.0.300.0050.00318.77
8.0.290.0060.00317.18
8.0.280.0030.00318.43
8.0.270.0030.00317.31
8.0.260.0040.00416.86
8.0.250.0030.00316.86
8.0.240.0000.00816.93
8.0.230.0000.00716.83
8.0.220.0070.00016.89
8.0.210.0070.00016.92
8.0.200.0030.00317.00
8.0.190.0030.00416.98
8.0.180.0040.00416.95
8.0.170.0080.00016.90
8.0.160.0040.00416.79
8.0.150.0060.00316.91
8.0.140.0000.01016.84
8.0.130.0000.00613.31
8.0.120.0050.00316.93
8.0.110.0080.00016.95
8.0.100.0000.00816.84
8.0.90.0050.00216.86
8.0.80.0090.00616.93
8.0.70.0000.00716.79
8.0.60.0000.00716.85
8.0.50.0000.00716.71
8.0.30.0130.00816.98
8.0.20.0110.00717.41
8.0.10.0050.00216.97
8.0.00.0110.00716.78
7.4.330.0030.00315.00
7.4.320.0030.00316.53
7.4.300.0030.00316.41
7.4.290.0030.00316.47
7.4.280.0040.00416.50
7.4.270.0030.00316.61
7.4.260.0050.00316.56
7.4.250.0050.00316.46
7.4.240.0000.00716.52
7.4.230.0070.00016.48
7.4.220.0130.01316.45
7.4.210.0050.00816.60
7.4.200.0070.00016.50
7.4.190.0050.00316.64
7.4.160.0060.00916.61
7.4.150.0170.00417.40
7.4.140.0110.00817.86
7.4.130.0070.01016.46
7.4.120.0090.01016.55
7.4.110.0140.00616.64
7.4.100.0080.00816.58
7.4.90.0070.01016.34
7.4.80.0090.00919.39
7.4.70.0090.01516.51
7.4.60.0030.01416.74
7.4.50.0030.00616.20
7.4.40.0070.01122.77
7.4.30.0130.00816.52
7.4.00.0100.00614.79
7.3.330.0020.00213.21
7.3.320.0070.00013.08
7.3.310.0000.00716.27
7.3.300.0030.00316.11
7.3.290.0100.00416.28
7.3.280.0120.00816.25
7.3.270.0130.00317.40
7.3.260.0030.02116.51
7.3.250.0090.00916.31
7.3.240.0030.01616.55
7.3.230.0120.00616.39
7.3.210.0070.01416.33
7.3.200.0180.00319.39
7.3.190.0080.01116.34
7.3.180.0100.00616.51
7.3.170.0110.00516.54
7.3.160.0090.00616.40
7.3.120.0030.01514.89
7.3.110.0060.01314.81
7.3.100.0100.00714.76
7.3.90.0090.00014.91
7.3.80.0080.00314.63
7.3.70.0060.01114.58
7.3.60.0040.01114.48
7.3.50.0030.00814.36
7.3.40.0100.00714.76
7.3.30.0070.00714.66
7.3.20.0060.00316.57
7.3.10.0180.00616.42
7.3.00.0080.01316.51
7.2.330.0120.00616.35
7.2.320.0150.00316.64
7.2.310.0130.00316.52
7.2.300.0190.00316.55
7.2.290.0130.01016.45
7.2.250.0130.00714.77
7.2.240.0040.01515.04
7.2.230.0080.00814.78
7.2.220.0030.00614.84
7.2.210.0090.00314.86
7.2.200.0060.01014.92
7.2.190.0070.01014.79
7.2.180.0040.00815.04
7.2.170.0040.01114.86
7.2.130.0180.00917.07
7.2.120.0130.01016.66
7.2.110.0100.00316.78
7.2.100.0090.01116.81
7.2.90.0060.01216.75
7.2.80.0100.00216.91
7.2.70.0150.00416.54
7.2.60.0130.01016.72
7.2.50.0100.01016.73
7.2.40.0070.01016.69
7.2.30.0110.00716.54
7.2.20.0120.00916.82
7.2.10.0100.01016.45
7.2.00.0060.00718.16
7.1.330.0030.01316.03
7.1.320.0100.00015.80
7.1.310.0030.01015.90
7.1.300.0080.00315.71
7.1.290.0040.00815.65
7.1.280.0000.01415.80
7.1.270.0030.00615.91
7.1.260.0140.00015.99
7.1.250.0300.00415.64
7.1.100.0040.00718.16
7.1.70.0000.00916.92
7.1.60.0080.00619.50
7.1.50.0070.01416.67
7.1.00.0030.04722.57
7.0.200.0000.00716.62
7.0.140.0100.06722.10
7.0.60.0130.08019.91
7.0.50.0030.04717.78
7.0.40.0100.08320.08
7.0.30.0170.04320.17
7.0.20.0270.08320.04
7.0.10.0170.07320.09
7.0.00.0030.04720.11
5.6.280.0130.06321.11
5.6.210.0070.08020.62
5.6.200.0100.08018.12
5.6.190.0030.05720.57
5.6.180.3470.04020.46
5.6.170.0300.07020.44
5.6.160.0100.08020.38
5.6.150.0070.08018.10
5.6.140.0100.05718.18
5.6.130.0030.05718.17
5.6.120.0130.06321.09
5.6.110.0200.06321.02
5.6.100.0030.08721.12
5.6.90.0070.04321.03
5.6.80.0070.08320.39
5.5.350.0170.03720.39
5.5.340.0100.07317.91
5.5.330.0070.08320.21
5.5.320.0230.04320.27
5.5.310.0300.04720.28
5.5.300.0000.05017.94
5.5.290.0130.06717.90
5.5.280.0130.08020.97
5.5.270.0000.04320.82
5.5.260.0070.05320.86
5.5.250.0230.06320.61
5.5.240.0170.03720.15
5.4.450.0530.05019.58
5.4.440.0700.04019.41
5.4.430.0470.03319.40
5.4.420.0400.04719.28
5.4.410.0530.03019.43
5.4.400.1230.03319.10
5.4.390.0600.04319.16
5.4.380.0930.05318.63
5.4.370.1100.06018.68
5.4.360.1270.05718.59
5.4.350.0970.05018.61
5.4.340.1100.06018.66
5.4.320.0080.03712.45
5.4.310.0120.03812.45
5.4.300.0030.03812.46
5.4.290.0050.04612.45
5.4.280.0060.03512.35
5.4.270.0060.04512.35
5.4.260.0100.03812.35
5.4.250.0170.04718.70
5.4.240.0100.05018.87
5.4.230.0100.05318.64
5.4.220.0070.05318.80
5.4.210.0030.05718.78
5.4.200.0100.04718.64
5.4.190.0000.05718.89
5.4.180.0130.04718.93
5.4.170.0170.04318.73
5.4.160.0170.04318.73
5.4.150.0100.05718.68
5.4.140.0130.04716.30
5.4.130.0130.04716.23
5.4.120.0070.05016.25
5.4.110.0100.05016.34
5.4.100.0000.05316.36
5.4.90.0100.04316.42
5.4.80.0230.05016.33
5.4.70.0100.04316.19
5.4.60.0130.04316.38
5.4.50.0070.04316.33
5.4.40.0100.05016.42
5.4.30.0130.04016.36
5.4.20.0100.04316.26
5.4.10.0170.04316.25
5.4.00.0130.04315.70
5.3.290.0090.04112.80
5.3.280.0000.06014.59
5.3.270.0130.04314.30
5.3.260.0030.05314.62
5.3.250.0070.05014.30
5.3.240.0000.05714.46
5.3.230.0130.04714.30
5.3.220.0070.05014.58
5.3.210.0070.07314.40
5.3.200.0030.05314.57
5.3.190.0030.05714.58
5.3.180.0030.06014.65
5.3.170.0070.04714.33
5.3.160.0130.06314.41
5.3.150.0030.05314.33
5.3.140.0000.06014.64
5.3.130.0070.07314.54
5.3.120.0270.05314.41
5.3.110.0070.05314.55
5.3.100.0030.05713.80
5.3.90.0070.05014.02
5.3.80.0000.05713.79
5.3.70.0100.04713.71
5.3.60.0100.04714.02
5.3.50.0100.04714.04
5.3.40.0130.04313.71
5.3.30.0070.04713.79
5.3.20.0100.04313.57
5.3.10.0030.05013.70
5.3.00.0130.04313.33
5.2.170.0030.04711.25
5.2.160.0000.04711.23
5.2.150.0230.04011.14
5.2.140.0000.04711.14
5.2.130.0100.05311.05
5.2.120.0130.04311.20
5.2.110.0000.04311.19
5.2.100.0070.03711.10
5.2.90.0100.03711.19
5.2.80.0130.04311.00
5.2.70.0130.04011.18
5.2.60.0000.05310.95
5.2.50.0070.06010.86
5.2.40.0070.04010.97
5.2.30.0100.03710.87
5.2.20.0100.03310.79
5.2.10.0100.03310.76
5.2.00.0030.04310.60
5.1.60.0030.0379.84
5.1.50.0100.03710.05
5.1.40.0070.0309.83
5.1.30.0070.04010.37
5.1.20.0030.04310.25
5.1.10.0130.0279.91
5.1.00.0070.03310.12
5.0.50.0030.0278.31
5.0.40.0030.0278.52
5.0.30.0070.0408.24
5.0.20.0030.0278.10
5.0.10.0030.0278.23
5.0.00.0000.0578.24
4.4.90.0000.0236.93
4.4.80.0070.0276.93
4.4.70.0030.0206.93
4.4.60.0000.0236.93
4.4.50.0030.0206.93
4.4.40.0030.0336.93
4.4.30.0000.0236.93
4.4.20.0030.0206.93
4.4.10.0030.0206.93
4.4.00.0030.0336.93
4.3.110.0030.0206.93
4.3.100.0030.0206.93
4.3.90.0000.0236.93
4.3.80.0000.0376.93
4.3.70.0030.0176.93
4.3.60.0030.0206.93
4.3.50.0070.0206.93
4.3.40.0030.0336.93
4.3.30.0030.0306.93
4.3.20.0000.0236.93
4.3.10.0030.0206.93
4.3.00.0030.01014.52

preferences:
48.97 ms | 401 KiB | 5 Q