3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ''; var_dump(isset($a));

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)
8.3.40.0110.00418.62
8.3.30.0140.00018.84
8.3.20.0040.00420.10
8.3.10.0040.00423.48
8.3.00.0030.00619.01
8.2.170.0110.00422.96
8.2.160.0100.00320.35
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0110.00826.16
8.2.120.0070.00022.25
8.2.110.0090.00922.07
8.2.100.0070.00317.72
8.2.90.0150.00618.10
8.2.80.0170.00417.53
8.2.70.0180.00418.25
8.2.60.0170.00517.64
8.2.50.0170.00517.60
8.2.40.0130.00617.78
8.2.30.0140.00517.70
8.2.20.0160.00217.43
8.2.10.0110.00817.61
8.2.00.0150.00617.46
8.1.270.0120.00423.90
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0000.00823.99
8.1.230.0110.00419.10
8.1.220.0210.00017.43
8.1.210.0170.00417.93
8.1.200.0150.00417.04
8.1.190.0120.00717.12
8.1.180.0110.00917.99
8.1.170.0180.00117.78
8.1.160.0150.00419.36
8.1.150.0150.00417.68
8.1.140.0130.00217.81
8.1.130.0140.00417.26
8.1.120.0140.00617.27
8.1.110.0120.00817.28
8.1.100.0100.00417.26
8.1.90.0140.00517.32
8.1.80.0120.00617.15
8.1.70.0100.00517.25
8.1.60.0100.00717.27
8.1.50.0090.00617.30
8.1.40.0110.00517.33
8.1.30.0080.00917.36
8.1.20.0110.00517.45
8.1.10.0100.00717.33
8.1.00.0110.00517.24
8.0.300.0190.00017.79
8.0.290.0170.00216.93
8.0.280.0140.00517.58
8.0.270.0140.00717.00
8.0.260.0150.00517.01
8.0.250.0150.00416.79
8.0.240.0140.00416.83
8.0.230.0130.00616.83
8.0.220.0180.00216.80
8.0.210.0160.00416.82
8.0.200.0090.00716.82
8.0.190.0150.00316.83
8.0.180.0140.00516.76
8.0.170.0100.00816.84
8.0.160.0130.00416.71
8.0.150.0110.00716.75
8.0.140.0160.00216.68
8.0.130.0130.00615.83
8.0.120.0110.00516.07
8.0.110.0100.00516.17
8.0.100.0120.00316.19
8.0.90.0130.00316.16
8.0.80.0130.00516.14
8.0.70.0120.00516.23
8.0.60.0110.00416.36
8.0.50.0080.00516.19
8.0.30.0100.00716.44
8.0.20.0110.00616.52
8.0.10.0120.00516.26
8.0.00.0090.00816.43
7.4.330.0130.00215.91
7.4.320.0070.00716.50
7.4.300.0110.00316.50
7.4.290.0150.00516.53
7.4.280.0180.00216.45
7.4.270.0130.00516.55
7.4.260.0120.00616.77
7.4.250.0100.00615.87
7.4.240.0080.00516.08
7.4.230.0110.00515.96
7.4.220.0100.00715.93
7.4.210.0100.00716.08
7.4.200.0100.00515.99
7.4.190.0120.00416.18
7.4.180.0130.00416.16
7.4.160.0120.00516.10
7.4.150.0100.00816.15
7.4.140.0140.00516.42
7.4.130.0110.00615.94
7.4.120.0120.00515.98
7.4.110.0100.00615.93
7.4.100.0110.00415.97
7.4.90.0110.00415.97
7.4.80.0090.00716.33
7.4.70.0110.00616.00
7.4.60.0120.00616.01
7.4.50.0100.00515.88
7.4.40.0100.00816.74
7.4.30.0110.00716.00
7.4.20.0130.00516.00
7.4.10.0090.00815.93
7.4.00.0090.00715.71
7.3.330.0100.00515.70
7.3.320.0140.00415.42
7.3.310.0120.00515.57
7.3.300.0120.00315.74
7.3.290.0110.00515.69
7.3.280.0100.00515.81
7.3.270.0100.00615.95
7.3.260.0110.00715.77
7.3.250.0130.00615.87
7.3.240.0110.00515.88
7.3.230.0120.00415.74
7.3.220.0080.00615.71
7.3.210.0110.00515.80
7.3.200.0110.00616.19
7.3.190.0120.00415.79
7.3.180.0120.00415.86
7.3.170.0120.00515.81
7.3.160.0130.00415.85
7.3.150.0130.00515.77
7.3.140.0090.00815.84
7.3.130.0100.00715.82
7.3.120.0100.00615.64
7.3.110.0120.00515.76
7.3.100.0110.00515.72
7.3.90.0100.00615.94
7.3.80.0110.00615.56
7.3.70.0110.00515.65
7.3.60.0100.00615.50
7.3.50.0100.00615.44
7.3.40.0090.00715.32
7.3.30.0110.00815.28
7.3.20.0120.00816.27
7.3.10.0110.00816.21
7.3.00.0110.00716.26
7.2.340.0130.00615.82
7.2.330.0130.00615.83
7.2.320.0130.00615.91
7.2.310.0110.00715.95
7.2.300.0130.00615.97
7.2.290.0130.00516.04
7.2.280.0120.00615.88
7.2.270.0130.00515.86
7.2.260.0140.00515.87
7.2.250.0170.00215.92
7.2.240.0110.00715.81
7.2.230.0130.00515.85
7.2.220.0120.00615.87
7.2.210.0110.00815.72
7.2.200.0150.00515.81
7.2.190.0120.00715.71
7.2.180.0110.00715.55
7.2.170.0120.00615.59
7.2.160.0110.00715.47
7.2.150.0120.00816.49
7.2.140.0180.00716.51
7.2.130.0140.00716.54
7.2.120.0120.00616.56
7.2.110.0140.00716.48
7.2.100.0150.00716.50
7.2.90.0160.00716.44
7.2.80.0160.00416.44
7.2.70.0140.00716.51
7.2.60.0110.00816.51
7.2.50.0150.00716.47
7.2.40.0160.00716.66
7.2.30.0170.00916.63
7.2.20.0160.00816.59
7.2.10.0170.00716.59
7.2.00.0160.00716.89
7.1.330.0120.00616.03
7.1.320.0230.00515.96
7.1.310.0140.00615.65
7.1.300.0150.00515.65
7.1.290.0130.00815.65
7.1.280.0180.00715.45
7.1.270.0120.00815.46
7.1.260.0130.00615.44
7.1.250.0130.00515.42
7.1.240.0120.00815.38
7.1.230.0140.00715.48
7.1.220.0150.00715.42
7.1.210.0160.00715.42
7.1.200.0120.00815.42
7.1.190.0170.00615.43
7.1.180.0260.00715.40
7.1.170.0140.00715.36
7.1.160.0180.00715.50
7.1.150.0180.00715.51
7.1.140.0220.00715.52
7.1.130.0180.00615.50
7.1.120.0160.00715.51
7.1.110.0140.00915.38
7.1.100.0130.00815.66
7.1.90.0190.00715.49
7.1.80.0180.00515.45
7.1.70.0220.00815.44
7.1.60.0160.00817.06
7.1.50.0190.00716.80
7.1.40.0180.00516.78
7.1.30.0180.00616.84
7.1.20.0160.00716.83
7.1.10.0170.00715.28
7.1.00.0160.01115.84
7.0.330.0200.00715.09
7.0.320.0120.00615.06
7.0.310.0130.00815.16
7.0.300.0150.00715.02
7.0.290.0170.00715.16
7.0.280.0140.00615.16
7.0.270.0160.00615.21
7.0.260.0190.00615.22
7.0.250.0140.00615.20
7.0.240.0190.00615.26
7.0.230.0140.00715.25
7.0.220.0160.00715.14
7.0.210.0160.00715.14
7.0.200.0170.00715.06
7.0.190.0210.00515.12
7.0.180.0140.00715.12
7.0.170.0150.00715.10
7.0.160.0140.00815.05
7.0.150.0150.00815.07
7.0.140.0150.01115.62
7.0.130.0220.00615.11
7.0.120.0160.00715.15
7.0.110.0160.00915.08
7.0.100.0240.00615.00
7.0.90.0170.00715.12
7.0.80.0180.00515.02
7.0.70.0170.00615.02
7.0.60.0140.01215.36
7.0.50.0150.01215.23
7.0.40.0180.01115.54
7.0.30.0170.01115.48
7.0.20.0150.01115.51
7.0.10.0150.01015.50
7.0.00.0150.00915.40
5.6.400.0120.00714.92
5.6.390.0140.00614.83
5.6.380.0120.00614.93
5.6.370.0130.00714.93
5.6.360.0130.00714.95
5.6.350.0130.00714.96
5.6.340.0120.00614.90
5.6.330.0120.00814.95
5.6.320.0120.00814.89
5.6.310.0130.00614.87
5.6.300.0130.01315.36
5.6.290.0130.01015.41
5.6.280.0130.01615.80
5.6.270.0130.01115.40
5.6.260.0130.01115.40
5.6.250.0120.01215.41
5.6.240.0140.01315.47
5.6.230.0140.01015.41
5.6.220.0150.01115.42
5.6.210.0130.01615.82
5.6.200.0100.01915.67
5.6.190.0140.01415.83
5.6.180.0150.01915.78
5.6.170.0160.01515.88
5.6.160.0120.01815.80
5.6.150.0140.01715.65
5.6.140.0130.01515.69
5.6.130.0120.01715.65
5.6.120.0140.01715.94
5.6.110.0120.01415.80
5.6.100.0130.01515.83
5.6.90.0120.01415.84
5.6.80.0100.01715.72
5.6.70.0130.01315.75
5.6.60.0120.01015.33
5.6.50.0120.01115.33
5.6.40.0130.01015.27
5.6.30.0120.01315.36
5.6.20.0130.01215.34
5.6.10.0120.01115.31
5.6.00.0130.01215.29
5.5.380.0140.01015.08
5.5.370.0120.01015.20
5.5.360.0120.01015.05
5.5.350.0130.01715.46
5.5.340.0120.01615.21
5.5.330.0120.01615.44
5.5.320.0140.01715.51
5.5.310.0150.01415.47
5.5.300.0120.01715.29
5.5.290.0120.01615.35
5.5.280.0140.01715.47
5.5.270.0120.01315.49
5.5.260.0140.01515.53
5.5.250.0120.01815.49
5.5.240.0130.01215.48
5.5.230.0130.01015.00
5.5.220.0120.01015.02
5.5.210.0120.01015.05
5.5.200.0120.01114.96
5.5.190.0140.01115.00
5.5.180.0110.01215.03
5.5.170.0130.00714.79
5.5.160.0110.01214.97
5.5.150.0120.01014.99
5.5.140.0110.01014.89
5.5.130.0110.01214.90
5.5.120.0100.01314.91
5.5.110.0140.00914.92
5.5.100.0130.01014.90
5.5.90.0120.01014.99
5.5.80.0110.01214.98
5.5.70.0130.01215.01
5.5.60.0140.01015.01
5.5.50.0130.01014.99
5.5.40.0100.01314.97
5.5.30.0100.01214.93
5.5.20.0110.01215.00
5.5.10.0130.01115.00
5.5.00.0110.01214.92
5.4.450.0210.00913.68
5.4.440.0170.01413.71
5.4.430.0090.01413.69
5.4.420.0190.01213.72
5.4.410.0170.01213.61
5.4.400.0160.01313.71
5.4.390.0150.01413.67
5.4.380.0120.01313.54
5.4.370.0110.01313.60
5.4.360.0120.01313.59
5.4.350.0140.01113.64
5.4.340.0130.01413.57
5.4.330.0110.00412.64
5.4.320.0100.01113.17
5.4.310.0110.01213.17
5.4.300.0110.01113.14
5.4.290.0090.01313.16
5.4.280.0100.01213.17
5.4.270.0110.01213.14
5.4.260.0110.01313.08
5.4.250.0090.01213.16
5.4.240.0100.01113.11
5.4.230.0120.01213.09
5.4.220.0120.01213.07
5.4.210.0110.01113.04
5.4.200.0100.01413.08
5.4.190.0110.01213.03
5.4.180.0120.01113.07
5.4.170.0110.01213.09
5.4.160.0090.01313.01
5.4.150.0110.01113.10
5.4.140.0100.01412.89
5.4.130.0120.00912.89
5.4.120.0090.01312.86
5.4.110.0110.01212.87
5.4.100.0100.01112.87
5.4.90.0100.01112.87
5.4.80.0110.01112.88
5.4.70.0100.01212.91
5.4.60.0100.01212.91
5.4.50.0100.01012.87
5.4.40.0090.01112.84
5.4.30.0090.01112.89
5.4.20.0100.01012.88
5.4.10.0100.01112.90
5.4.00.0100.01012.77
5.3.290.0100.01213.02
5.3.280.0100.01112.96
5.3.270.0090.01312.92
5.3.260.0100.01212.97
5.3.250.0110.01012.95
5.3.240.0110.01112.92
5.3.230.0110.01212.95
5.3.220.0120.01012.93
5.3.210.0100.01212.91
5.3.200.0110.01012.89
5.3.190.0100.01112.91
5.3.180.0100.01312.99
5.3.170.0100.01313.00
5.3.160.0100.01213.00
5.3.150.0110.01212.94
5.3.140.0100.01112.92
5.3.130.0110.01112.95
5.3.120.0110.01312.90
5.3.110.0100.01212.95
5.3.100.0090.01312.81
5.3.90.0090.01312.83
5.3.80.0090.01112.74
5.3.70.0110.01112.76
5.3.60.0110.01112.82
5.3.50.0070.01412.79
5.3.40.0100.01112.77
5.3.30.0090.01112.83
5.3.20.0110.01012.76
5.3.10.0090.01112.68
5.3.00.0100.01112.69

preferences:
40.15 ms | 400 KiB | 5 Q