3v4l.org

run code in 300+ PHP versions simultaneously
<?php $b = []; $a = $b['foo']; var_dump(isset($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)
8.3.40.0150.00018.63
8.3.30.0090.00618.62
8.3.20.0080.00018.64
8.3.10.0040.00418.91
8.3.00.0040.00419.26
8.2.170.0180.00322.96
8.2.160.0060.00921.19
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0040.00420.45
8.2.110.0030.00722.27
8.2.100.0080.00418.03
8.2.90.0080.00017.85
8.2.80.0040.00417.97
8.2.70.0030.00617.38
8.2.60.0000.00818.03
8.2.50.0000.01118.07
8.2.40.0040.00418.22
8.2.30.0000.00818.10
8.2.20.0030.00617.69
8.2.10.0030.00517.78
8.2.00.0000.00817.65
8.1.270.0080.00020.19
8.1.260.0080.00026.35
8.1.250.0000.00728.09
8.1.240.0050.00520.79
8.1.230.0000.01122.67
8.1.220.0030.00617.74
8.1.210.0040.00418.77
8.1.200.0030.00617.23
8.1.190.0060.00317.41
8.1.180.0100.00018.10
8.1.170.0050.00318.84
8.1.160.0040.00418.75
8.1.150.0030.00618.44
8.1.140.0040.00417.37
8.1.130.0030.00317.86
8.1.120.0000.00717.35
8.1.110.0070.00017.29
8.1.100.0070.00017.36
8.1.90.0080.00017.29
8.1.80.0000.00817.41
8.1.70.0030.00317.35
8.1.60.0080.00017.49
8.1.50.0000.00817.35
8.1.40.0090.00017.40
8.1.30.0020.00517.57
8.1.20.0040.00417.50
8.1.10.0080.00017.42
8.1.00.0020.00517.50
8.0.300.0000.00820.04
8.0.290.0000.00816.88
8.0.280.0040.00418.37
8.0.270.0030.00317.07
8.0.260.0000.00716.71
8.0.250.0000.00716.98
8.0.240.0030.00316.94
8.0.230.0050.00316.81
8.0.220.0030.00316.77
8.0.210.0030.00316.90
8.0.200.0000.00716.93
8.0.190.0040.00416.96
8.0.180.0040.00416.76
8.0.170.0080.00016.87
8.0.160.0030.00316.87
8.0.150.0060.00316.82
8.0.140.0080.00516.86
8.0.130.0000.00513.35
8.0.120.0000.00916.86
8.0.110.0040.00416.80
8.0.100.0070.00016.75
8.0.90.0000.00716.83
8.0.80.0030.01316.83
8.0.70.0040.00416.68
8.0.60.0000.00716.69
8.0.50.0030.00516.93
8.0.30.0070.01117.15
8.0.20.0160.00517.15
8.0.10.0050.00316.96
8.0.00.0130.00516.70
7.4.330.0050.00012.91
7.4.320.0000.00716.44
7.4.300.0000.00716.52
7.4.290.0040.00716.41
7.4.280.0070.00016.41
7.4.270.0030.00316.38
7.4.260.0070.00013.23
7.4.250.0050.00216.43
7.4.240.0040.00416.54
7.4.230.0070.00016.63
7.4.220.0150.00616.50
7.4.210.0050.01116.50
7.4.200.0000.00716.47
7.4.190.0060.00016.34
7.4.160.0120.00916.45
7.4.150.0090.00916.46
7.4.140.0100.00816.41
7.4.130.0100.00616.47
7.4.120.0080.00816.26
7.4.110.0090.01316.41
7.4.100.0120.00916.42
7.4.90.0160.00716.17
7.4.80.0090.01219.39
7.4.70.0060.01016.47
7.4.60.0100.00716.54
7.4.50.0000.01216.51
7.4.40.0070.01016.19
7.4.30.0090.00616.14
7.4.10.0040.01515.13
7.4.00.0100.00615.03
7.3.330.0060.00012.99
7.3.320.0030.00313.12
7.3.310.0030.00316.07
7.3.300.0000.00716.25
7.3.290.0070.00716.30
7.3.280.0100.00916.25
7.3.270.0160.00916.35
7.3.260.0130.00516.16
7.3.250.0150.00316.20
7.3.240.0060.01216.28
7.3.230.0060.01016.40
7.3.210.0100.00616.31
7.3.200.0100.00716.33
7.3.190.0030.01516.51
7.3.180.0040.01216.31
7.3.170.0030.01216.46
7.3.160.0150.00616.53
7.3.130.0100.01014.81
7.3.120.0060.01114.87
7.3.110.0080.01014.62
7.3.100.0050.00814.91
7.3.90.0050.01114.71
7.3.80.0030.01114.67
7.3.70.0030.01114.82
7.3.60.0070.00614.79
7.3.50.0050.00914.75
7.3.40.0080.00514.80
7.3.30.0080.00714.73
7.3.20.0120.00216.53
7.3.10.0060.00616.66
7.3.00.0040.00816.51
7.2.330.0110.00716.66
7.2.320.0110.00616.75
7.2.310.0120.01216.38
7.2.300.0100.00716.63
7.2.290.0080.00816.41
7.2.260.0060.01214.82
7.2.250.0040.01415.22
7.2.240.0060.01015.18
7.2.230.0080.00714.75
7.2.220.0080.00614.79
7.2.210.0080.00814.90
7.2.200.0040.00714.94
7.2.190.0050.01115.09
7.2.180.0080.00514.97
7.2.170.0070.00314.75
7.2.160.0050.01214.99
7.2.150.0050.00816.91
7.2.140.0060.00416.96
7.2.130.0080.00616.88
7.2.120.0080.00517.00
7.2.110.0060.00416.89
7.2.100.0060.00516.90
7.2.90.0050.00916.80
7.2.80.0020.01016.81
7.2.70.0020.01016.59
7.2.60.0020.01216.76
7.2.50.0100.00516.90
7.2.40.0050.00916.71
7.2.30.0060.00716.70
7.2.20.0050.00916.82
7.2.10.0040.00916.85
7.2.00.0080.01017.42
7.1.330.0080.00815.61
7.1.320.0070.00515.90
7.1.310.0040.00715.63
7.1.300.0040.00815.61
7.1.290.0040.00615.62
7.1.280.0070.00615.69
7.1.270.0050.00915.80
7.1.260.0070.00715.48
7.1.250.0030.01115.87
7.1.240.0080.00315.64
7.1.230.0020.00915.76
7.1.220.0040.01115.57
7.1.210.0070.00715.78
7.1.200.0080.00615.79
7.1.190.0050.00715.74
7.1.180.0040.00515.62
7.1.170.0070.00515.65
7.1.160.0010.01015.66
7.1.150.0100.00515.57
7.1.140.0060.00615.58
7.1.130.0000.01215.65
7.1.120.0090.00515.59
7.1.110.0050.00715.68
7.1.100.0060.01116.49
7.1.90.0050.00615.67
7.1.80.0080.00515.71
7.1.70.0060.00816.11
7.1.60.0040.01216.84
7.1.50.0060.00916.09
7.1.40.0050.01015.73
7.1.30.0070.00515.43
7.1.20.0020.00915.67
7.1.10.0080.00315.51
7.1.00.0040.01617.96
7.0.330.0020.01215.10
7.0.320.0050.00915.36
7.0.310.0040.00815.14
7.0.300.0080.00415.44
7.0.290.0070.00715.11
7.0.280.0040.01215.10
7.0.270.0050.00815.40
7.0.260.0100.00715.23
7.0.250.0040.00615.45
7.0.240.0050.00815.47
7.0.230.0040.00615.42
7.0.220.0030.01215.17
7.0.210.0090.00715.24
7.0.200.0030.00815.88
7.0.190.0060.00515.39
7.0.180.0050.01015.24
7.0.170.0070.00515.41
7.0.160.0060.00415.44
7.0.150.0030.00915.48
7.0.140.0020.03217.62
7.0.130.0030.00815.36
7.0.120.0040.02517.68
7.0.110.0030.01015.33
7.0.100.0020.00915.33
7.0.90.0090.00415.30
7.0.80.0070.00715.45
7.0.70.0050.00815.19
7.0.60.0110.02916.79
7.0.50.0050.02316.27
7.0.40.0060.02415.50
7.0.30.0110.01915.61
7.0.20.0130.02815.68
7.0.10.0110.02715.70
7.0.00.0100.03015.55
5.6.400.0020.00914.53
5.6.390.0020.00814.29
5.6.380.0080.00314.10
5.6.370.0030.00814.53
5.6.360.0060.00814.12
5.6.350.0040.00714.31
5.6.340.0020.01014.14
5.6.330.0020.01514.18
5.6.320.0050.00914.23
5.6.310.0040.00714.37
5.6.300.0050.01014.51
5.6.290.0080.00614.10
5.6.280.0050.00414.48
5.6.270.0090.00314.28
5.6.260.0040.00814.14
5.6.250.0050.01014.22
5.6.240.0040.00914.24
5.6.230.0060.00814.43
5.6.220.0050.00614.36
5.6.210.0080.03016.46
5.6.200.0060.02215.51
5.6.190.0050.03416.42
5.6.180.0110.03116.37
5.6.170.0140.02616.23
5.6.160.0030.03116.26
5.6.150.0050.01715.59
5.6.140.0020.03215.57
5.6.130.0050.02915.59
5.6.120.0050.03416.55
5.6.110.0090.03016.50
5.6.100.0070.03216.54
5.6.90.0030.02616.41
5.6.80.0100.03116.23
5.6.70.0140.02616.23
5.6.60.0050.00914.19
5.6.50.0050.00714.34
5.6.40.0070.00714.26
5.6.30.0050.00714.18
5.6.20.0020.01214.29
5.6.10.0040.01014.18
5.6.00.0020.00714.17
5.5.380.0060.00814.11
5.5.370.0050.00614.34
5.5.360.0060.00714.19
5.5.350.0130.03316.24
5.5.340.0090.02915.34
5.5.330.0050.02516.44
5.5.320.0150.02916.28
5.5.310.0100.03616.19
5.5.300.0080.02915.51
5.5.290.0070.01615.52
5.5.280.0140.02616.56
5.5.270.0060.02316.31
5.5.260.0070.03116.27
5.5.250.0070.02816.28
5.5.240.0040.02816.16
5.5.230.0050.00814.18
5.5.220.0080.00514.21
5.5.210.0080.00813.91
5.5.200.0050.00814.15
5.5.190.0090.00714.16
5.5.180.0080.00614.09
5.5.170.0040.00814.15
5.5.160.0030.00814.02
5.5.150.0040.01014.16
5.5.140.0110.00514.16
5.5.130.0000.01414.27
5.5.120.0040.01114.13
5.5.110.0070.00714.15
5.5.100.0070.00814.16
5.5.90.0090.00614.05
5.5.80.0060.00713.96
5.5.70.0030.01014.19
5.5.60.0090.00513.99
5.5.50.0070.00714.17
5.5.40.0020.00914.22
5.5.30.0060.00714.27
5.5.20.0050.00813.99
5.5.10.0060.00713.97
5.5.00.0100.00313.98
5.4.450.0610.02113.72
5.4.440.0720.01813.90
5.4.430.0660.01713.85
5.4.420.0620.02113.86
5.4.410.0660.01513.75
5.4.400.0620.02113.75
5.4.390.0670.01413.70
5.4.380.0640.01813.62
5.4.370.0620.01513.72
5.4.360.0610.01913.64
5.4.350.0590.02213.56
5.4.340.0340.01813.81
5.4.330.0050.00611.03
5.4.320.0070.02313.59
5.4.310.0020.01713.77
5.4.300.0170.01713.69
5.4.290.0520.01913.78
5.4.280.0510.02013.61
5.4.270.0600.01213.68
5.4.260.0670.01613.75
5.4.250.0640.01613.60
5.4.240.0570.01713.73
5.4.230.0590.01813.55
5.4.220.0540.01713.63
5.4.210.0610.01713.63
5.4.200.0580.01413.81
5.4.190.0170.01513.66
5.4.180.0050.02013.68
5.4.170.0160.01813.61
5.4.160.0520.01513.57
5.4.150.0540.01413.75
5.4.140.0500.01812.73
5.4.130.0530.01412.84
5.4.120.0520.01412.82
5.4.110.0510.01312.80
5.4.100.0520.01812.85
5.4.90.0560.01512.83
5.4.80.0490.01212.85
5.4.70.0640.01912.72
5.4.60.0590.01512.84
5.4.50.0500.01712.87
5.4.40.0040.01612.76
5.4.30.0040.01812.82
5.4.20.0300.01512.78
5.4.10.0600.02212.84
5.4.00.0570.01812.62
5.3.290.0530.01812.12
5.3.280.0530.01612.02
5.3.270.0590.01612.07
5.3.260.0570.01611.99
5.3.250.0530.01912.03
5.3.240.0430.01612.03
5.3.230.0530.01911.99
5.3.220.0540.01212.01
5.3.210.0520.01312.05
5.3.200.0540.01712.02
5.3.190.0050.01411.98
5.3.180.0030.01611.98
5.3.170.0250.01712.04
5.3.160.0070.01512.01
5.3.150.0070.01711.97
5.3.140.0250.01712.02
5.3.130.0400.01711.97
5.3.120.0490.01811.98
5.3.110.0530.01412.00
5.3.100.0550.01811.82
5.3.90.0610.01911.86
5.3.80.0540.01511.85
5.3.70.0520.01811.77
5.3.60.0560.01711.79
5.3.50.0620.01811.75
5.3.40.0540.01511.78
5.3.30.0500.01811.79
5.3.20.0570.01211.75
5.3.10.0540.01211.71
5.3.00.0700.01611.73
5.2.170.1530.03711.20
5.2.160.1400.02710.98
5.2.150.1130.03011.19
5.2.140.1330.03711.03
5.2.130.1270.02311.04
5.2.120.1200.03011.15
5.2.110.1330.03010.89
5.2.100.1070.02710.95
5.2.90.1470.03311.01
5.2.80.1300.04010.94
5.2.70.0900.04311.14
5.2.60.0030.06011.05
5.2.50.0000.03011.06
5.2.40.0230.05010.88
5.2.30.0900.03710.81
5.2.20.1100.03311.00
5.2.10.1200.04310.83
5.2.00.1170.04010.65
5.1.60.1200.03310.08
5.1.50.1030.0209.93
5.1.40.1130.0339.87
5.1.30.1170.03010.30
5.1.20.0800.04310.25
5.1.10.0000.04310.11
5.1.00.0030.02310.09
5.0.50.0000.0208.59
5.0.40.0000.0208.57
5.0.30.0000.0308.09
5.0.20.0000.0208.09
5.0.10.0070.0408.07
5.0.00.0030.0308.20
4.4.90.0630.0237.57
4.4.80.0530.0237.57
4.4.70.0430.0177.57
4.4.60.0470.0137.57
4.4.50.0400.0137.57
4.4.40.0000.0237.57
4.4.30.0030.0137.57
4.4.20.0000.0207.57
4.4.10.0000.0177.57
4.4.00.0000.0577.57
4.3.110.0030.0277.57
4.3.100.0000.0237.57
4.3.90.0100.0177.57
4.3.80.0600.0407.57
4.3.70.0570.0177.57
4.3.60.0470.0207.57
4.3.50.0530.0177.57
4.3.40.0430.0277.57
4.3.30.0300.0307.57
4.3.20.0270.0337.57
4.3.10.0230.0277.57
4.3.00.0270.0307.57

preferences:
55.31 ms | 404 KiB | 6 Q