3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "72"; var_dump( isset($a["foo"]) );

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)
8.3.40.0070.00718.45
8.3.30.0070.00719.06
8.3.20.0040.00420.34
8.3.10.0050.00323.71
8.3.00.0060.00320.94
8.2.170.0090.01222.96
8.2.160.0130.00020.39
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0050.00319.48
8.2.110.0060.00319.27
8.2.100.0040.00717.78
8.2.90.0040.00419.19
8.2.80.0080.00017.97
8.2.70.0000.00817.50
8.2.60.0060.00318.04
8.2.50.0030.00718.07
8.2.40.0000.00919.94
8.2.30.0040.00418.30
8.2.20.0040.00417.71
8.2.10.0030.00617.97
8.2.00.0040.00419.36
8.1.270.0030.01423.92
8.1.260.0080.00026.35
8.1.250.0060.00328.09
8.1.240.0060.00321.05
8.1.230.0060.00617.52
8.1.220.0080.00017.74
8.1.210.0000.00818.77
8.1.200.0000.00817.23
8.1.190.0030.00617.10
8.1.180.0000.00918.10
8.1.170.0040.00418.47
8.1.160.0080.00021.93
8.1.150.0050.00218.60
8.1.140.0040.00417.25
8.1.130.0000.00717.77
8.1.120.0070.00017.45
8.1.110.0050.00317.39
8.1.100.0000.00817.44
8.1.90.0000.00717.40
8.1.80.0000.00817.34
8.1.70.0030.00317.38
8.1.60.0030.00617.42
8.1.50.0000.00817.45
8.1.40.0080.00017.46
8.1.30.0020.00517.58
8.1.20.0030.00517.56
8.1.10.0000.00817.55
8.1.00.0000.00817.36
8.0.300.0000.00818.77
8.0.290.0080.00016.58
8.0.280.0030.00318.32
8.0.270.0000.00717.18
8.0.260.0000.00617.20
8.0.250.0070.00016.77
8.0.240.0000.00716.89
8.0.230.0040.00416.81
8.0.220.0060.00016.77
8.0.210.0030.00316.82
8.0.200.0060.00016.86
8.0.190.0050.00216.91
8.0.180.0070.00016.74
8.0.170.0040.00416.83
8.0.160.0070.00016.86
8.0.150.0090.00016.81
8.0.140.0000.00716.82
8.0.130.0030.00313.24
8.0.120.0050.00216.77
8.0.110.0000.00716.66
8.0.100.0000.00716.71
8.0.90.0030.00516.67
8.0.80.0170.00316.80
8.0.70.0000.00716.88
8.0.60.0030.00316.88
8.0.50.0000.00716.84
8.0.30.0080.01116.98
8.0.20.0100.00917.40
8.0.10.0040.00417.00
8.0.00.0170.01616.63
7.4.330.0050.00015.00
7.4.320.0030.00316.50
7.4.300.0030.00316.59
7.4.290.0000.00716.42
7.4.280.0080.00016.50
7.4.270.0030.00616.34
7.4.260.0110.00016.36
7.4.250.0070.00016.25
7.4.240.0070.00016.50
7.4.230.0070.00016.61
7.4.220.0150.00616.47
7.4.210.0100.01016.57
7.4.200.0050.00316.43
7.4.160.0170.00716.53
7.4.150.0050.01317.40
7.4.140.0080.00817.86
7.4.130.0020.01416.28
7.4.120.0090.01116.43
7.4.110.0040.01216.34
7.4.100.0040.01816.38
7.4.90.0030.01316.34
7.4.80.0150.00919.39
7.4.70.0110.00716.34
7.4.60.0000.01516.50
7.4.50.0000.00416.48
7.4.40.0060.01016.23
7.4.30.0120.00316.32
7.4.00.0060.01214.93
7.3.330.0000.00512.93
7.3.320.0000.00613.05
7.3.310.0000.00716.13
7.3.300.0040.00416.10
7.3.290.0090.00616.15
7.3.280.0100.00916.20
7.3.270.0160.00017.40
7.3.260.0110.00716.35
7.3.250.0140.00716.17
7.3.240.0100.01016.32
7.3.230.0100.00716.39
7.3.210.0070.01016.14
7.3.200.0120.00919.39
7.3.190.0090.00916.32
7.3.180.0160.00016.44
7.3.170.0060.01016.27
7.3.160.0090.01216.13
7.3.120.0100.00814.67
7.3.110.0080.01014.50
7.3.100.0070.00814.76
7.3.90.0070.00714.54
7.3.80.0050.00914.57
7.3.70.0080.00514.56
7.3.60.0050.00814.55
7.3.50.0030.01014.56
7.3.40.0070.00614.64
7.3.30.0070.00914.73
7.3.20.0050.00616.46
7.3.10.0070.00716.57
7.3.00.0090.00616.52
7.2.330.0030.01516.54
7.2.320.0100.01116.51
7.2.310.0120.00916.30
7.2.300.0130.00316.50
7.2.290.0090.00616.33
7.2.250.0020.01314.77
7.2.240.0030.01714.66
7.2.230.0050.01314.77
7.2.220.0040.00914.90
7.2.210.0050.01314.72
7.2.200.0060.01114.71
7.2.190.0050.00814.82
7.2.180.0060.00814.57
7.2.170.0020.01314.86
7.2.130.0090.00716.64
7.2.120.0090.00816.69
7.2.110.0080.00516.69
7.2.100.0070.00816.53
7.2.90.0090.00816.75
7.2.80.0090.00716.67
7.2.70.0110.00516.83
7.2.60.0100.00616.78
7.2.50.0120.00716.74
7.2.40.0080.00916.81
7.2.30.0100.00516.68
7.2.20.0070.00816.74
7.2.10.0120.00416.77
7.2.00.0060.00817.34
7.1.330.0080.00515.66
7.1.320.0070.00415.68
7.1.310.0080.00615.57
7.1.300.0080.00615.58
7.1.290.0060.00915.63
7.1.280.0080.00515.66
7.1.270.0070.00715.55
7.1.260.0030.00815.84
7.1.250.0100.00515.51
7.1.240.0100.00015.62
7.1.230.0110.00415.41
7.1.220.0100.00315.37
7.1.210.0100.00615.70
7.1.200.0130.00015.58
7.1.190.0060.00915.67
7.1.180.0130.00315.60
7.1.170.0120.00315.40
7.1.160.0100.00715.42
7.1.150.0110.00015.71
7.1.140.0150.00715.82
7.1.130.0070.00415.86
7.1.120.0060.00915.79
7.1.110.0070.00715.72
7.1.100.0070.00616.72
7.1.90.0130.00315.52
7.1.80.0160.00515.59
7.1.70.0040.01116.17
7.1.60.0150.00717.64
7.1.50.0130.00816.04
7.1.40.0130.00315.18
7.1.30.0120.00615.36
7.1.20.0090.01315.38
7.1.10.0140.00315.46
7.1.00.0090.03918.96
7.0.330.0000.01415.22
7.0.320.0120.00615.22
7.0.310.0110.00815.27
7.0.300.0090.00314.95
7.0.290.0140.00315.03
7.0.280.0080.00415.13
7.0.270.0040.01115.23
7.0.260.0030.01015.01
7.0.250.0040.01315.43
7.0.240.0070.01315.23
7.0.230.0130.00615.32
7.0.220.0170.00615.18
7.0.210.0110.00715.29
7.0.200.0080.00715.90
7.0.190.0100.00314.84
7.0.180.0070.00315.05
7.0.170.0120.00615.30
7.0.160.0180.00315.18
7.0.150.0080.01514.83
7.0.140.0120.03618.65
7.0.130.0100.01015.12
7.0.120.0130.00415.07
7.0.110.0100.00515.14
7.0.100.0140.00014.88
7.0.90.0080.00814.78
7.0.80.0090.00815.07
7.0.70.0080.00814.90
7.0.60.0100.04217.59
7.0.50.0080.04116.60
7.0.40.0080.04016.60
7.0.30.0120.03516.64
7.0.20.0150.03016.63
7.0.10.0120.03016.59
7.0.00.0110.02316.63
5.6.380.0030.00914.10
5.6.370.0040.01114.31
5.6.360.0000.01413.89
5.6.350.0090.00313.87
5.6.340.0070.00714.20
5.6.330.0070.01013.98
5.6.320.0000.01014.03
5.6.310.0030.00813.88
5.6.300.0050.01013.81
5.6.290.0080.00814.20
5.6.280.0050.04117.57
5.6.270.0160.00014.19
5.6.260.0040.01114.04
5.6.250.0030.01414.16
5.6.240.0040.01213.95
5.6.230.0000.01413.95
5.6.220.0120.00314.14
5.6.210.0070.02417.43
5.6.200.0130.04216.16
5.6.190.0040.04917.17
5.6.180.0090.04317.03
5.6.170.0170.03917.31
5.6.160.0070.04717.03
5.6.150.0050.04515.99
5.6.140.0050.02715.81
5.6.130.0100.02315.96
5.6.120.0050.03017.43
5.6.110.0080.03717.56
5.6.100.0070.04417.29
5.6.90.0050.04317.44
5.6.80.0050.02817.09
5.6.70.0200.03217.23
5.6.60.0070.00714.06
5.6.50.0130.00514.05
5.6.40.0110.00914.46
5.6.30.0120.01114.36
5.6.20.0140.00413.79
5.6.10.0080.01314.15
5.6.00.0200.00014.13
5.5.380.0000.00811.00
5.5.370.0040.01111.00
5.5.360.0050.00511.00
5.5.350.0000.04715.70
5.5.340.0030.03314.50
5.5.330.0030.02915.70
5.5.320.0180.04015.67
5.5.310.0130.02015.66
5.5.300.0160.03514.45
5.5.290.0040.02214.50
5.5.280.0090.01915.82
5.5.270.0040.02715.87
5.5.260.0030.04115.88
5.5.250.0030.02315.85
5.5.240.0060.04115.68
5.5.230.0000.00911.00
5.5.220.0000.00811.00
5.5.210.0100.00011.00
5.5.200.0070.00711.00
5.5.190.0000.00711.00
5.5.180.0080.00011.00
5.5.170.0080.00511.00
5.5.160.0050.00511.00
5.5.150.0070.00311.00
5.5.140.0070.00511.00
5.5.130.0130.00011.00
5.5.120.0030.01011.00
5.5.110.0030.00811.00
5.5.100.0030.00611.00
5.5.90.0090.00311.00
5.5.80.0100.00011.00
5.5.70.0040.00411.00
5.5.60.0060.00211.00
5.5.50.0080.00411.00
5.5.40.0000.01311.00
5.5.30.0000.01011.00
5.5.20.0060.00611.00
5.5.10.0090.00311.00
5.5.00.0000.00911.00
5.4.450.0400.02423.60
5.4.440.0180.02622.31
5.4.430.0490.02315.28
5.4.420.0140.02021.14
5.4.410.0120.02621.13
5.4.400.0220.02021.13
5.4.390.0240.02920.17
5.4.380.0350.03614.79
5.4.370.0340.02614.74
5.4.360.0420.02714.85
5.4.350.0380.03314.87
5.4.340.0370.03214.79
5.4.330.0140.00011.00
5.4.320.0050.02211.73
5.4.310.0040.03211.72
5.4.300.0050.02211.73
5.4.290.0080.02511.72
5.4.280.0040.03111.67
5.4.270.0100.02611.67
5.4.260.0080.02211.67
5.4.250.0050.02311.67
5.4.240.0060.02011.67
5.4.230.0040.02311.67
5.4.220.0050.02111.67
5.4.210.0040.02311.67
5.4.200.0080.02211.67
5.4.190.0040.02411.67
5.4.180.0050.02011.67
5.4.170.0020.02311.68
5.4.160.0050.02311.67
5.4.150.0080.02011.67
5.4.140.0040.02311.51
5.4.130.0020.02411.51
5.4.120.0050.02211.49
5.4.110.0060.02711.48
5.4.100.0100.02511.48
5.4.90.0090.02111.48
5.4.80.0080.02311.48
5.4.70.0100.01811.48
5.4.60.0050.02311.48
5.4.50.0090.02011.48
5.4.40.0050.02411.47
5.4.30.0040.02211.47
5.4.20.0040.02211.48
5.4.10.0040.02211.48
5.4.00.0080.01911.22
5.3.290.0050.02511.90
5.3.280.0080.02011.86
5.3.270.0090.02011.86
5.3.260.0040.02611.86
5.3.250.0040.03111.86
5.3.240.0050.03111.86
5.3.230.0050.02511.86
5.3.220.0060.02211.84
5.3.210.0060.02811.84
5.3.200.0030.02911.84
5.3.190.0130.02011.84
5.3.180.0120.02411.84
5.3.170.0090.02211.83
5.3.160.0090.02311.84
5.3.150.0070.02511.84
5.3.140.0080.02211.83
5.3.130.0060.02111.83
5.3.120.0060.02111.83
5.3.110.0070.02211.83
5.3.100.0070.01911.56
5.3.90.0040.02311.54
5.3.80.0050.02211.54
5.3.70.0090.01811.54
5.3.60.0060.02011.53
5.3.50.0060.02111.50
5.3.40.0060.02111.50
5.3.30.0070.02511.47
5.3.20.0050.02111.37
5.3.10.0050.01911.35
5.3.00.0040.02311.34
5.2.170.0050.01710.09
5.2.160.0020.01810.09
5.2.150.0020.01810.09
5.2.140.0040.01810.09
5.2.130.0050.01510.07
5.2.120.0030.01610.07
5.2.110.0060.01610.07
5.2.100.0040.01610.07
5.2.90.0030.01610.07
5.2.80.0030.01910.07
5.2.70.0040.02010.07
5.2.60.0040.01910.04
5.2.50.0040.01710.03
5.2.40.0050.01710.01
5.2.30.0020.01910.00
5.2.20.0040.01610.00
5.2.10.0050.0169.96
5.2.00.0030.0169.89
5.1.60.0020.0169.53
5.1.50.0070.0129.53
5.1.40.0050.0149.52
5.1.30.0070.0129.70
5.1.20.0010.0189.71
5.1.10.0050.0139.57
5.1.00.0040.0149.57
5.0.50.0040.0118.81
5.0.40.0010.0148.74
5.0.30.0040.0168.64
5.0.20.0030.0128.63
5.0.10.0010.0148.62
5.0.00.0020.0178.62
4.4.90.0040.0097.89
4.4.80.0020.0117.88
4.4.70.0020.0107.88
4.4.60.0020.0097.88
4.4.50.0020.0097.89
4.4.40.0020.0147.86
4.4.30.0020.0117.88
4.4.20.0010.0117.93
4.4.10.0030.0097.93
4.4.00.0040.0147.88
4.3.110.0010.0117.84
4.3.100.0030.0127.83
4.3.90.0040.0077.82
4.3.80.0020.0157.79
4.3.70.0030.0097.82
4.3.60.0010.0107.81
4.3.50.0040.0097.81
4.3.40.0030.0147.77
4.3.30.0040.0097.14
4.3.20.0020.0097.13
4.3.10.0030.0097.11
4.3.00.0000.01320.16

preferences:
44.71 ms | 400 KiB | 5 Q