3v4l.org

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

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)
8.3.60.0170.00318.09
8.3.50.0120.00918.27
8.3.40.0140.00018.71
8.3.30.0000.01518.76
8.3.20.0070.00020.21
8.3.10.0080.00021.60
8.3.00.0030.00518.96
8.2.180.0120.00318.04
8.2.170.0120.00322.96
8.2.160.0140.00022.08
8.2.150.0040.00424.18
8.2.140.0030.00524.66
8.2.130.0060.00326.16
8.2.120.0080.00019.41
8.2.110.0120.00922.11
8.2.100.0060.00618.09
8.2.90.0000.00819.09
8.2.80.0040.00417.97
8.2.70.0060.00317.50
8.2.60.0000.00817.80
8.2.50.0070.00318.07
8.2.40.0000.00718.16
8.2.30.0040.00419.23
8.2.20.0000.00717.61
8.2.10.0000.00817.99
8.2.00.0000.00717.51
8.1.280.0170.00325.92
8.1.270.0000.00820.61
8.1.260.0070.00026.35
8.1.250.0000.00828.09
8.1.240.0060.00323.92
8.1.230.0080.00419.02
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0060.00317.23
8.1.190.0080.00017.00
8.1.180.0050.00318.10
8.1.170.0000.00718.65
8.1.160.0040.00421.94
8.1.150.0000.00718.77
8.1.140.0030.00619.17
8.1.130.0070.00017.88
8.1.120.0000.00817.28
8.1.110.0000.00817.38
8.1.100.0000.00817.41
8.1.90.0030.00317.41
8.1.80.0070.00517.36
8.1.70.0100.00217.34
8.1.60.0090.00317.52
8.1.50.0080.00617.45
8.1.40.0090.00417.47
8.1.30.0060.00817.49
8.1.20.0110.00317.59
8.1.10.0110.00317.37
8.1.00.0090.00517.27
8.0.300.0040.00418.77
8.0.290.0070.00016.63
8.0.280.0030.00318.41
8.0.270.0030.00317.19
8.0.260.0030.00317.17
8.0.250.0050.00216.90
8.0.240.0000.00616.84
8.0.230.0070.00016.88
8.0.220.0000.00816.81
8.0.210.0050.00616.81
8.0.200.0040.00916.79
8.0.190.0060.00716.84
8.0.180.0110.00216.76
8.0.170.0080.00416.85
8.0.160.0050.00716.83
8.0.150.0050.00716.71
8.0.140.0090.00316.68
8.0.130.0030.00914.93
8.0.120.0060.00314.97
8.0.110.0080.00316.74
8.0.100.0070.00516.71
8.0.90.0000.01216.61
8.0.80.0080.01216.80
8.0.70.0120.00016.73
8.0.60.0060.00616.84
8.0.50.0070.00416.74
8.0.30.0080.01216.94
8.0.20.0120.01217.23
8.0.10.0090.00416.94
8.0.00.0150.00216.76
7.4.330.0050.00015.03
7.4.320.0030.00316.50
7.4.300.0080.00516.46
7.4.290.0090.00416.38
7.4.280.0090.00516.43
7.4.270.0110.00216.54
7.4.260.0110.00216.44
7.4.250.0060.00616.39
7.4.240.0070.00216.41
7.4.230.0090.00316.37
7.4.220.0130.00716.45
7.4.210.0080.00816.45
7.4.200.0090.00316.56
7.4.190.0100.00516.47
7.4.180.0100.00416.48
7.4.160.0110.00416.45
7.4.150.0120.00616.94
7.4.140.0090.01017.40
7.4.130.0100.01116.40
7.4.120.0090.00816.32
7.4.110.0090.00816.31
7.4.100.0040.01416.31
7.4.90.0100.00816.37
7.4.80.0110.00717.38
7.4.70.0150.00516.31
7.4.60.0130.00416.30
7.4.50.0060.00516.18
7.4.40.0130.00616.34
7.4.30.0120.00516.34
7.4.20.0080.01016.27
7.4.10.0070.00716.14
7.4.00.0080.00815.87
7.3.330.0020.00514.42
7.3.320.0050.00514.47
7.3.310.0080.00215.95
7.3.300.0030.00716.15
7.3.290.0070.00316.05
7.3.280.0110.00516.19
7.3.270.0090.00916.83
7.3.260.0170.00216.07
7.3.250.0080.00916.20
7.3.240.0090.00816.21
7.3.230.0130.00416.17
7.3.220.0070.00716.03
7.3.210.0100.00616.24
7.3.200.0130.00517.20
7.3.190.0110.01016.31
7.3.180.0110.00816.29
7.3.170.0140.00316.16
7.3.160.0090.00816.11
7.3.150.0100.00616.06
7.3.140.0120.00316.21
7.3.130.0090.00616.12
7.3.120.0090.00516.02
7.3.110.0120.00316.15
7.3.100.0110.00515.39
7.3.90.0140.00415.30
7.3.80.0090.00715.28
7.3.70.0100.00615.34
7.3.60.0130.00515.39
7.3.50.0110.00415.28
7.3.40.0070.00715.37
7.3.30.0070.00715.66
7.3.20.0250.00515.56
7.3.10.0430.00815.62
7.3.00.0680.00415.39
7.2.340.0200.00416.40
7.2.330.0120.00916.32
7.2.320.0140.00716.35
7.2.310.0170.00716.43
7.2.300.0160.00716.33
7.2.290.0150.00816.42
7.2.280.0150.00716.34
7.2.270.0140.00816.16
7.2.260.0150.00716.30
7.2.250.0140.00916.09
7.2.240.0190.00516.27
7.2.230.0090.01115.65
7.2.220.0100.00715.44
7.2.210.0120.00715.45
7.2.200.0120.00715.57
7.2.190.0100.00915.37
7.2.180.0070.01115.34
7.2.170.0120.00615.46
7.2.160.0070.01015.71
7.2.150.0250.00715.64
7.2.140.0280.00415.70
7.2.130.0380.00715.58
7.2.120.0300.00715.78
7.2.110.0380.00915.65
7.2.100.0280.00415.74
7.2.90.0420.00915.83
7.2.80.0320.00715.81
7.2.70.0320.00715.86
7.2.60.0270.00915.76
7.2.50.0360.00615.77
7.2.40.0420.00816.31
7.2.30.0290.00815.75
7.2.20.0180.01215.68
7.2.10.0340.00515.80
7.2.00.0220.00616.70
7.1.330.0120.00815.40
7.1.320.0740.00714.54
7.1.310.0410.00814.62
7.1.300.0350.00814.51
7.1.290.0350.00614.57
7.1.280.0280.00214.78
7.1.270.0250.00514.86
7.1.260.0240.00714.71
7.1.250.0240.01014.82
7.1.240.0330.00414.79
7.1.230.0470.00814.80
7.1.220.0290.00914.81
7.1.210.0380.00314.82
7.1.200.0270.00814.68
7.1.190.0290.00714.82
7.1.180.0370.00714.79
7.1.170.0270.00414.82
7.1.160.0250.00814.71
7.1.150.0520.00714.70
7.1.140.0370.00714.78
7.1.130.0340.00414.86
7.1.120.0240.00714.75
7.1.110.0550.00614.81
7.1.100.0310.00715.59
7.1.90.0290.00714.86
7.1.80.0230.01014.91
7.1.70.0160.00615.37
7.1.60.0180.00615.40
7.1.50.0140.00715.40
7.1.40.0160.01015.42
7.1.30.0220.00415.35
7.1.20.0210.00815.30
7.1.10.0160.00615.28
7.1.00.0380.00415.31
7.0.330.0400.00614.54
7.0.320.0290.00714.38
7.0.310.0270.00714.51
7.0.300.0330.00314.52
7.0.290.0240.00614.54
7.0.280.0260.00614.43
7.0.270.0230.01014.34
7.0.260.0280.00914.41
7.0.250.0520.00614.55
7.0.240.0290.00414.56
7.0.230.0240.00614.56
7.0.220.0190.00614.45
7.0.210.0170.00514.50
7.0.200.0130.00615.09
7.0.190.0160.00515.15
7.0.180.0230.00315.18
7.0.170.0200.00515.13
7.0.160.0240.00515.11
7.0.150.0120.01015.13
7.0.140.0150.00515.05
7.0.130.0220.00515.22
7.0.120.0390.00615.17
7.0.110.0520.01015.13
7.0.100.0100.00815.07
7.0.90.0160.00515.14
7.0.80.0150.00815.11
7.0.70.0220.00715.15
7.0.60.0550.00715.11
7.0.50.0170.00515.06
7.0.40.0490.00815.03
7.0.30.0230.00715.14
7.0.20.0200.00715.00
7.0.10.0420.00515.04
7.0.00.0150.00614.99
5.6.400.0100.00815.32
5.6.390.0120.00615.14
5.6.380.0170.00315.10
5.6.370.0090.00915.28
5.6.360.0520.00515.22
5.6.350.0120.00715.27
5.6.340.0100.00715.05
5.6.330.0110.00815.24
5.6.320.0070.01015.11
5.6.310.0100.00615.19
5.6.300.0080.01716.56
5.6.290.0100.01516.53
5.6.280.0100.01416.67
5.6.270.0090.01516.57
5.6.260.0210.01316.53
5.6.250.0060.01716.54
5.6.240.0110.01516.68
5.6.230.0090.01816.72
5.6.220.0060.03016.60
5.6.210.0080.01716.49
5.6.200.0080.01616.68
5.6.190.0090.01816.61
5.6.180.0120.01816.67
5.6.170.0080.01716.59
5.6.160.0100.01916.55
5.6.150.0120.01516.52
5.6.140.0090.01816.57
5.6.130.0120.01616.55
5.6.120.0430.02616.48
5.6.110.0300.02916.50
5.6.100.0320.02216.60
5.6.90.0470.01116.52
5.6.80.0120.01516.29
5.6.70.0120.01916.31
5.6.60.0120.01516.28
5.6.50.0370.01916.30
5.6.40.0130.01216.28
5.6.30.0290.01616.30
5.6.20.0090.01616.30
5.6.10.0260.01416.31
5.6.00.0110.02716.23
5.5.380.0110.01715.69
5.5.370.0470.01515.67
5.5.360.0120.02115.70
5.5.350.0140.01315.59
5.5.340.0160.01815.89
5.5.330.0100.02615.92
5.5.320.0140.02415.71
5.5.310.0130.01415.70
5.5.300.0130.01515.75
5.5.290.0130.01715.83
5.5.280.0130.01515.82
5.5.270.0300.01515.74
5.5.260.0110.01715.77
5.5.250.0200.01515.78
5.5.240.0360.01715.69
5.5.230.0190.02415.61
5.5.220.0360.02315.59
5.5.210.0360.01915.66
5.5.200.0140.01115.63
5.5.190.0110.01615.42
5.5.180.0100.02115.63
5.5.170.0340.00615.02
5.5.160.0140.01515.52
5.5.150.0130.01615.60
5.5.140.0120.02115.52
5.5.130.0120.01615.49
5.5.120.0120.02515.47
5.5.110.0120.01515.52
5.5.100.0110.01715.63
5.5.90.0080.02515.63
5.5.80.0120.02315.53
5.5.70.0110.01915.63
5.5.60.0060.02015.49
5.5.50.0120.01315.46
5.5.40.0300.02115.53
5.5.30.0100.01915.61
5.5.20.0360.01915.42
5.5.10.0300.01815.46
5.5.00.0110.01915.49
5.4.450.0100.01713.69
5.4.440.0120.01213.69
5.4.430.0090.01613.86
5.4.420.0090.01413.81
5.4.410.0120.01213.63
5.4.400.0120.02213.61
5.4.390.0090.02013.62
5.4.380.0090.01713.53
5.4.370.0100.01613.69
5.4.360.0110.01413.59
5.4.350.0100.01413.70
5.4.340.0100.01313.66
5.4.330.0110.00811.96
5.4.320.0120.01313.64
5.4.310.0090.01513.66
5.4.300.0090.01513.74
5.4.290.0240.01913.71
5.4.280.0270.02213.68
5.4.270.0330.01513.59
5.4.260.0080.01713.63
5.4.250.0320.01813.60
5.4.240.0100.01513.63
5.4.230.0280.01313.64
5.4.220.0100.01513.59
5.4.210.0190.01313.59
5.4.200.0100.01513.66
5.4.190.0100.02013.61
5.4.180.0100.01813.55
5.4.170.0170.02113.66
5.4.160.0070.02113.56
5.4.150.0120.02213.55
5.4.140.0110.01913.17
5.4.130.0160.01613.12
5.4.120.0050.01713.13
5.4.110.0080.01413.11
5.4.100.0060.02513.17
5.4.90.0100.01213.18
5.4.80.0210.01413.08
5.4.70.0110.01113.09
5.4.60.0090.01313.14
5.4.50.0090.01213.07
5.4.40.0090.02313.15
5.4.30.0260.01413.17
5.4.20.0080.01413.19
5.4.10.0060.01813.15
5.4.00.0280.01313.09

preferences:
53.15 ms | 400 KiB | 5 Q