3v4l.org

run code in 300+ PHP versions simultaneously
<?php $key = 1; var_dump(isset($key[0]));

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)
8.3.40.0070.00718.57
8.3.30.0090.00618.96
8.3.20.0070.00020.34
8.3.10.0040.00423.70
8.3.00.0080.00022.18
8.2.170.0060.00922.96
8.2.160.0070.00720.38
8.2.150.0000.00824.18
8.2.140.0060.00324.66
8.2.130.0080.00026.16
8.2.120.0040.00422.22
8.2.110.0060.00320.97
8.2.100.0080.00417.84
8.2.90.0040.00417.63
8.2.80.0030.00617.97
8.2.70.0000.00817.79
8.2.60.0050.00318.04
8.2.50.0000.00818.10
8.2.40.0030.00620.50
8.2.30.0040.00418.08
8.2.20.0000.00717.52
8.2.10.0040.00419.42
8.2.00.0000.00717.67
8.1.270.0060.00323.96
8.1.260.0040.00426.35
8.1.250.0100.00328.09
8.1.240.0030.00622.19
8.1.230.0050.00519.15
8.1.220.0030.00517.74
8.1.210.0040.00418.77
8.1.200.0060.00317.35
8.1.190.0000.00816.88
8.1.180.0040.00418.10
8.1.170.0000.00818.46
8.1.160.0000.00721.86
8.1.150.0000.00918.57
8.1.140.0050.00317.37
8.1.130.0030.00317.86
8.1.120.0040.00417.39
8.1.110.0040.00417.38
8.1.100.0000.00717.43
8.1.90.0000.00717.45
8.1.80.0070.00017.39
8.1.70.0000.00817.30
8.1.60.0000.00717.41
8.1.50.0000.00817.33
8.1.40.0000.00717.38
8.1.30.0040.00417.48
8.1.20.0040.00417.63
8.1.10.0000.00717.60
8.1.00.0040.00417.55
8.0.300.0070.00019.73
8.0.290.0040.00416.63
8.0.280.0030.00318.25
8.0.270.0080.00017.20
8.0.260.0030.00316.79
8.0.250.0030.00316.90
8.0.240.0000.00816.87
8.0.230.0060.00316.92
8.0.220.0070.00016.70
8.0.210.0040.00416.77
8.0.200.0060.00016.87
8.0.190.0070.00316.83
8.0.180.0040.00416.84
8.0.170.0040.00416.85
8.0.160.0030.00316.71
8.0.150.0040.00416.66
8.0.140.0030.00316.80
8.0.130.0000.00613.22
8.0.120.0050.00316.84
8.0.110.0040.00416.75
8.0.100.0060.00316.80
8.0.90.0050.00216.69
8.0.80.0090.00616.82
8.0.70.0000.00716.85
8.0.60.0040.00416.70
8.0.50.0040.00416.85
8.0.30.0120.00716.81
8.0.20.0130.00717.40
8.0.10.0040.00417.01
8.0.00.0050.01316.60
7.4.330.0050.00015.09
7.4.320.0030.00316.54
7.4.300.0030.00316.44
7.4.290.0000.00716.53
7.4.280.0030.00316.44
7.4.270.0000.00616.48
7.4.260.0040.00416.41
7.4.250.0000.00716.39
7.4.240.0020.00516.48
7.4.230.0030.00316.55
7.4.220.0120.01316.53
7.4.210.0050.01016.46
7.4.200.0000.00716.54
7.4.190.0000.00716.67
7.4.160.0050.01016.28
7.4.150.0140.00417.40
7.4.140.0080.01017.86
7.4.130.0080.01016.42
7.4.120.0040.01516.47
7.4.110.0090.00916.44
7.4.100.0140.00716.45
7.4.90.0100.00716.38
7.4.80.0040.01619.39
7.4.70.0130.00316.44
7.4.60.0130.00316.60
7.4.50.0000.00816.23
7.4.40.0000.01322.77
7.4.30.0060.01116.41
7.4.10.0070.01314.90
7.4.00.0070.01014.61
7.3.330.0000.00513.03
7.3.320.0050.00013.12
7.3.310.0030.00316.02
7.3.300.0030.00316.23
7.3.290.0110.00816.20
7.3.280.0080.01016.24
7.3.270.0120.00417.40
7.3.260.0060.01016.06
7.3.250.0080.00816.32
7.3.240.0040.01916.49
7.3.230.0060.00916.39
7.3.210.0140.00316.47
7.3.200.0160.00019.39
7.3.190.0060.01216.13
7.3.180.0050.01216.13
7.3.170.0110.00516.43
7.3.160.0060.01116.26
7.3.130.0160.00314.38
7.3.120.0050.01114.71
7.3.110.0030.01614.54
7.3.100.0000.01414.67
7.3.90.0090.00614.37
7.3.80.0030.00914.62
7.3.70.0070.00314.69
7.3.60.0000.01414.69
7.3.50.0030.00714.58
7.3.40.0050.00514.58
7.3.30.0060.00914.54
7.3.20.0110.00416.47
7.3.10.0040.00716.39
7.3.00.0080.00616.55
7.2.330.0100.01316.49
7.2.320.0030.01316.42
7.2.310.0150.00916.30
7.2.300.0000.01716.46
7.2.290.0140.00716.32
7.2.260.0110.00714.58
7.2.250.0040.01514.93
7.2.240.0030.01114.93
7.2.230.0110.00414.70
7.2.220.0100.00314.86
7.2.210.0070.00715.06
7.2.200.0070.00715.00
7.2.190.0110.00314.71
7.2.180.0040.00814.64
7.2.170.0030.01414.55
7.2.160.0100.00614.86
7.2.150.0080.00316.63
7.2.140.0060.00616.79
7.2.130.0060.00616.55
7.2.120.0080.00316.53
7.2.110.0030.01016.80
7.2.100.0080.00616.66
7.2.90.0110.00216.53
7.2.80.0090.00816.67
7.2.70.0060.00716.45
7.2.60.0030.00916.75
7.2.50.0070.00616.67
7.2.40.0080.00316.63
7.2.30.0030.00716.72
7.2.20.0080.01216.69
7.2.10.0080.00616.57
7.2.00.0010.01217.52
7.1.330.0080.00315.72
7.1.320.0040.00815.86
7.1.310.0040.01215.55
7.1.300.0130.00015.29
7.1.290.0000.01015.72
7.1.280.0040.01115.79
7.1.270.0070.00315.53
7.1.260.0070.00715.85
7.1.250.0040.00715.58
7.1.240.0080.00015.76
7.1.230.0070.00315.58
7.1.220.0060.00615.57
7.1.210.0030.01015.52
7.1.200.0050.01115.74
7.1.190.0080.00515.81
7.1.180.0070.00715.59
7.1.170.0030.00915.71
7.1.160.0060.00315.63
7.1.150.0000.00915.50
7.1.140.0030.01015.63
7.1.130.0040.00715.55
7.1.120.0080.00315.70
7.1.110.0110.00415.75
7.1.100.0070.00516.84
7.1.90.0040.01215.70
7.1.80.0070.00715.55
7.1.70.0030.00816.08
7.1.60.0110.01017.40
7.1.50.0100.00916.04
7.1.40.0140.00415.50
7.1.30.0110.00415.64
7.1.20.0070.00715.76
7.1.10.0100.00315.61
7.1.00.0080.03618.85
7.0.330.0110.00315.09
7.0.320.0060.00615.18
7.0.310.0040.00815.09
7.0.300.0100.00014.98
7.0.290.0070.00315.18
7.0.280.0070.00715.02
7.0.270.0040.00415.09
7.0.260.0030.00615.17
7.0.250.0060.00615.19
7.0.240.0110.00415.39
7.0.230.0040.01115.05
7.0.220.0030.01015.23
7.0.210.0030.00615.31
7.0.200.0000.01315.87
7.0.190.0090.00615.25
7.0.180.0060.00615.16
7.0.170.0030.00715.15
7.0.160.0030.00615.18
7.0.150.0030.01315.34
7.0.140.0020.04118.72
7.0.130.0040.00715.02
7.0.120.0130.00015.45
7.0.110.0040.00915.32
7.0.100.0060.00915.01
7.0.90.0040.01114.85
7.0.80.0070.00715.21
7.0.70.0030.00715.20
7.0.60.0050.04617.52
7.0.50.0050.03816.63
7.0.40.0030.03516.70
7.0.30.0060.03116.79
7.0.20.0160.04316.71
7.0.10.0040.02516.61
7.0.00.0070.04816.72
5.6.400.0070.00414.27
5.6.390.0080.00614.22
5.6.380.0100.00013.89
5.6.370.0000.01314.08
5.6.360.0090.00614.32
5.6.350.0040.00414.37
5.6.340.0060.00613.95
5.6.330.0030.00614.22
5.6.320.0120.00314.29
5.6.310.0070.01014.09
5.6.300.0030.01314.48
5.6.290.0060.00914.07
5.6.280.0080.03517.54
5.6.270.0060.01113.97
5.6.260.0070.00714.06
5.6.250.0070.01014.14
5.6.240.0030.01014.36
5.6.230.0060.00614.28
5.6.220.0030.01314.35
5.6.210.0060.02517.28
5.6.200.0100.04216.36
5.6.190.0030.02917.38
5.6.180.0150.03017.42
5.6.170.0150.03217.49
5.6.160.0070.04717.41
5.6.150.0090.04016.18
5.6.140.0030.03216.30
5.6.130.0090.04016.17
5.6.120.0110.04117.59
5.6.110.0080.02217.56
5.6.100.0100.04017.58
5.6.90.0090.03617.48
5.6.80.0090.03717.31
5.6.70.0100.00014.08
5.6.60.0070.00413.85
5.6.50.0060.00614.05
5.6.40.0070.00714.26
5.6.30.0080.00814.16
5.6.20.0090.00314.08
5.6.10.0030.00714.01
5.6.00.0030.01214.03
5.5.380.0100.00014.15
5.5.370.0100.00314.32
5.5.360.0040.00714.09
5.5.350.1230.02317.36
5.5.340.0050.03316.11
5.5.330.0040.03117.24
5.5.320.0170.02317.22
5.5.310.0250.02817.15
5.5.300.0020.03915.99
5.5.290.0130.02715.97
5.5.280.0070.03717.54
5.5.270.0030.02717.36
5.5.260.0070.02417.49
5.5.250.0080.02517.21
5.5.240.0080.04617.17
5.5.230.0060.00314.02
5.5.220.0030.00914.32
5.5.210.0090.00413.76
5.5.200.0030.01014.17
5.5.190.0070.00714.12
5.5.180.0110.00314.01
5.5.170.0050.00514.00
5.5.160.0040.01214.15
5.5.150.0060.00914.02
5.5.140.0040.01014.05
5.5.130.0090.00613.77
5.5.120.0030.00913.80
5.5.110.0060.00614.05
5.5.100.0070.00714.08
5.5.90.0000.01213.58
5.5.80.0040.01114.11
5.5.70.0060.00913.85
5.5.60.0120.00314.11
5.5.50.0060.00614.08
5.5.40.0090.00614.11
5.5.30.0030.01214.13
5.5.20.0070.00413.93
5.5.10.0130.00013.71
5.5.00.0080.00513.57
5.4.450.0180.02015.16
5.4.440.0130.04815.19
5.4.430.0200.03515.15
5.4.420.0170.02615.17
5.4.410.0140.04015.11
5.4.400.0180.03714.94
5.4.390.0150.02514.84
5.4.380.0200.03714.85
5.4.370.0250.02814.85
5.4.360.0100.03915.06
5.4.350.0150.03714.87
5.4.340.0150.02014.88
5.4.330.0030.00910.59
5.4.320.0190.02714.98
5.4.310.0130.02315.04
5.4.300.0130.03814.82
5.4.290.0100.02314.93
5.4.280.0150.04014.87
5.4.270.0180.02214.94
5.4.260.0120.02414.84
5.4.250.0160.03414.89
5.4.240.0200.02914.89
5.4.230.0110.02914.80
5.4.220.0070.02615.07
5.4.210.0200.04014.96
5.4.200.0210.02814.86
5.4.190.0130.03414.97
5.4.180.0150.02414.78
5.4.170.0130.02814.99
5.4.160.0120.03215.09
5.4.150.0100.02914.90
5.4.140.0130.03313.45
5.4.130.0140.01813.47
5.4.120.0150.03213.61
5.4.110.0090.02513.56
5.4.100.0140.02513.51
5.4.90.0130.02213.58
5.4.80.0100.02213.58
5.4.70.0130.03513.65
5.4.60.0100.02313.71
5.4.50.0110.01913.50
5.4.40.0150.01513.69
5.4.30.0120.03613.56
5.4.20.0130.01813.50
5.4.10.0100.02713.51
5.4.00.0110.04013.26
5.3.290.0080.03012.58
5.3.280.0150.02512.42
5.3.270.0100.03112.33
5.3.260.0190.03312.41
5.3.250.0170.03412.45
5.3.240.0140.03712.25
5.3.230.0180.03512.37
5.3.220.0180.02912.38
5.3.210.0250.02712.36
5.3.200.0170.02612.40
5.3.190.0180.03312.35
5.3.180.0100.03512.47
5.3.170.0200.03312.46
5.3.160.0120.03612.55
5.3.150.0150.03912.51
5.3.140.0170.03712.44
5.3.130.0150.03412.41
5.3.120.0170.03012.47
5.3.110.0150.03712.39
5.3.100.0130.03312.11
5.3.90.0150.04212.12
5.3.80.0180.02811.96
5.3.70.0150.03711.99
5.3.60.0190.03212.10
5.3.50.0130.02512.09
5.3.40.0120.04011.88
5.3.30.0160.02112.11
5.3.20.0120.02911.94
5.3.10.0190.02411.75
5.3.00.0160.01911.69
5.2.170.0130.03312.17
5.2.160.0200.06312.17
5.2.150.0230.05712.17
5.2.140.0200.03712.17
5.2.130.0270.05012.17
5.2.120.0230.05012.17
5.2.110.0170.05012.17
5.2.100.0230.04012.17
5.2.90.0130.03012.17
5.2.80.0270.05712.17
5.2.70.0130.06012.17
5.2.60.0230.05712.17
5.2.50.0200.05712.17
5.2.40.0070.03312.17
5.2.30.0130.03712.17
5.2.20.0130.03712.17
5.2.10.0170.05312.17
5.2.00.0170.05712.17
5.1.60.0130.03012.17
5.1.50.0170.02312.17
5.1.40.0130.05312.17
5.1.30.0130.02712.17
5.1.20.0200.04712.17
5.1.10.0100.03012.17
5.1.00.0170.03712.17
5.0.50.0100.03012.17
5.0.40.0130.01312.17
5.0.30.0170.05712.17
5.0.20.0070.02312.17
5.0.10.0130.02312.17
5.0.00.0130.06012.17
4.4.90.0100.02712.17
4.4.80.0070.02712.17
4.4.70.0070.02012.17
4.4.60.0100.03312.17
4.4.50.0130.03312.17
4.4.40.0100.05012.17
4.4.30.0170.02712.17
4.4.20.0070.02012.17
4.4.10.0130.02712.17
4.4.00.0070.02712.17
4.3.110.0100.03312.17
4.3.100.0070.02012.17
4.3.90.0070.03312.17
4.3.80.0100.02312.17
4.3.70.0070.01712.17
4.3.60.0070.03012.17
4.3.50.0100.02312.17
4.3.40.0070.04012.17
4.3.30.0100.01312.17
4.3.20.0070.03312.17
4.3.10.0030.01712.17
4.3.00.0130.02312.17

preferences:
61.94 ms | 400 KiB | 5 Q