3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(); $b = null; $x = isset($a['test']) ? $a['test'] : null;

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)
8.3.40.0070.00718.71
8.3.30.0110.00419.10
8.3.20.0040.00420.16
8.3.10.0040.00423.64
8.3.00.0070.00017.93
8.2.170.0070.01422.96
8.2.160.0100.00320.25
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0000.00721.15
8.2.110.0040.00422.09
8.2.100.0090.00319.57
8.2.90.0040.00418.85
8.2.80.0030.00617.97
8.2.70.0000.00817.75
8.2.60.0050.00318.03
8.2.50.0030.00618.07
8.2.40.0090.00018.22
8.2.30.0070.00318.12
8.2.20.0080.00017.70
8.2.10.0070.00018.05
8.2.00.0030.00617.63
8.1.270.0030.00623.86
8.1.260.0050.00226.35
8.1.250.0000.00728.09
8.1.240.0040.00423.77
8.1.230.0070.00418.96
8.1.220.0060.00317.74
8.1.210.0030.00518.77
8.1.200.0060.00316.99
8.1.190.0040.00417.10
8.1.180.0000.00818.10
8.1.170.0000.00718.46
8.1.160.0000.00721.89
8.1.150.0040.00418.82
8.1.140.0040.00417.43
8.1.130.0040.00417.77
8.1.120.0030.00317.43
8.1.110.0000.00817.38
8.1.100.0030.00517.36
8.1.90.0030.00317.31
8.1.80.0040.00417.41
8.1.70.0070.00017.37
8.1.60.0040.00417.44
8.1.50.0030.00517.43
8.1.40.0040.00417.45
8.1.30.0060.00317.58
8.1.20.0000.00917.53
8.1.10.0040.00417.38
8.1.00.0030.00617.46
8.0.300.0070.00018.77
8.0.290.0000.00716.63
8.0.280.0000.00718.36
8.0.270.0070.00017.10
8.0.260.0030.00317.12
8.0.250.0030.00316.92
8.0.240.0000.00816.89
8.0.230.0080.00016.90
8.0.220.0070.00016.80
8.0.210.0030.00316.73
8.0.200.0060.00016.82
8.0.190.0000.00816.79
8.0.180.0030.00516.70
8.0.170.0040.00416.84
8.0.160.0050.00216.84
8.0.150.0030.00616.66
8.0.140.0000.00716.66
8.0.130.0050.00013.20
8.0.120.0000.00716.76
8.0.110.0040.00416.89
8.0.100.0030.00516.61
8.0.90.0000.00816.62
8.0.80.0040.01116.81
8.0.70.0030.00316.75
8.0.60.0070.00016.78
8.0.50.0000.00716.63
8.0.30.0100.00816.92
8.0.20.0130.01017.40
8.0.10.0040.00416.90
8.0.00.0100.01016.54
7.4.330.0050.00015.05
7.4.320.0060.00016.58
7.4.300.0000.00916.50
7.4.290.0030.00316.45
7.4.280.0030.00316.50
7.4.270.0040.00416.48
7.4.260.0060.00316.43
7.4.250.0040.00416.34
7.4.240.0020.00516.44
7.4.230.0030.00316.29
7.4.220.0040.01416.38
7.4.210.0090.00616.47
7.4.200.0070.00016.34
7.4.160.0040.01116.39
7.4.150.0040.01317.40
7.4.140.0060.01317.86
7.4.130.0140.00616.40
7.4.120.0080.00916.54
7.4.110.0140.01116.40
7.4.100.0100.01016.30
7.4.90.0070.01016.35
7.4.80.0070.01319.39
7.4.70.0100.00716.42
7.4.60.0110.00616.47
7.4.50.0000.00516.32
7.4.40.0070.01016.33
7.4.30.0130.00316.52
7.4.00.0060.01114.96
7.3.330.0000.00513.06
7.3.320.0000.00613.04
7.3.310.0000.00716.24
7.3.300.0000.00716.10
7.3.290.0060.01516.15
7.3.280.0090.01016.20
7.3.270.0100.01117.40
7.3.260.0170.00316.50
7.3.250.0110.00916.38
7.3.240.0160.00316.18
7.3.230.0130.00316.39
7.3.210.0070.01016.37
7.3.200.0120.00419.39
7.3.190.0070.01016.48
7.3.180.0080.00716.44
7.3.170.0130.00616.27
7.3.160.0110.00416.30
7.3.120.0070.00914.44
7.3.110.0040.01114.61
7.3.100.0000.01514.89
7.3.90.0040.00914.69
7.3.80.0080.00814.50
7.3.70.0000.01214.70
7.3.60.0000.00914.48
7.3.50.0040.01114.61
7.3.40.0070.00714.50
7.3.30.0030.01014.72
7.3.20.0080.00616.59
7.3.10.0080.00316.29
7.3.00.0110.00516.25
7.2.330.0120.00916.34
7.2.320.0100.00716.51
7.2.310.0060.01116.36
7.2.300.0060.01616.50
7.2.290.0200.00016.22
7.2.250.0060.00914.94
7.2.240.0070.01114.79
7.2.230.0060.00614.80
7.2.220.0030.01014.83
7.2.210.0090.00614.95
7.2.200.0060.00614.71
7.2.190.0030.00915.02
7.2.180.0040.01114.99
7.2.170.0040.00414.85
7.2.130.0090.00616.68
7.2.120.0130.00616.82
7.2.110.0070.00716.47
7.2.100.0130.00316.88
7.2.90.0070.01016.92
7.2.80.0090.00916.63
7.2.70.0130.00616.55
7.2.60.0140.00316.63
7.2.50.0070.01016.30
7.2.40.0040.01116.67
7.2.30.0090.00416.80
7.2.20.0100.00616.48
7.2.10.0140.00316.81
7.2.00.0150.00517.92
7.1.330.0130.00315.64
7.1.320.0000.01415.81
7.1.310.0070.00715.30
7.1.300.0000.01115.44
7.1.290.0070.01015.66
7.1.280.0040.00415.59
7.1.270.0030.01015.63
7.1.260.0040.00415.71
7.1.250.0080.00415.53
7.1.240.0090.00615.70
7.1.230.0060.00915.55
7.1.220.0070.01015.57
7.1.210.0140.00015.57
7.1.200.0030.01215.31
7.1.190.0120.00315.68
7.1.180.0060.00915.46
7.1.170.0080.00815.72
7.1.160.0080.00815.45
7.1.150.0080.00615.69
7.1.140.0100.00715.53
7.1.130.0110.00015.30
7.1.120.0090.00615.36
7.1.110.0090.00615.41
7.1.100.0170.00416.40
7.1.90.0060.00615.44
7.1.80.0100.00715.44
7.1.70.0030.01016.49
7.1.60.0140.00317.50
7.1.50.0060.00916.29
7.1.40.0070.00715.75
7.1.30.0030.00715.21
7.1.20.0080.00415.55
7.1.10.0070.00715.55
7.1.00.0070.04218.85
7.0.330.0120.00315.03
7.0.320.0170.00215.20
7.0.310.0060.00615.24
7.0.300.0060.00915.16
7.0.290.0100.00715.35
7.0.280.0150.00015.09
7.0.270.0110.00315.34
7.0.260.0070.00714.96
7.0.250.0030.01015.32
7.0.240.0030.01315.21
7.0.230.0100.00315.16
7.0.220.0150.00014.85
7.0.210.0060.01014.88
7.0.200.0050.00815.93
7.0.190.0070.00415.18
7.0.180.0070.00714.99
7.0.170.0090.00914.94
7.0.160.0030.00715.20
7.0.150.0100.00315.29
7.0.140.0050.04018.67
7.0.130.0070.00715.27
7.0.120.0100.00315.43
7.0.110.0120.00015.12
7.0.100.0080.02717.67
7.0.90.0100.04417.52
7.0.80.0090.04317.65
7.0.70.0110.04117.59
7.0.60.0130.03817.69
7.0.50.0080.04517.72
7.0.40.0070.04616.76
7.0.30.0020.04416.63
7.0.20.0050.04516.88
7.0.10.0060.05016.70
7.0.00.0060.04116.71
5.6.380.0070.00714.14
5.6.370.0030.01013.96
5.6.360.0080.00314.20
5.6.350.0100.00314.21
5.6.340.0100.00214.26
5.6.330.0070.00714.01
5.6.320.0080.00814.02
5.6.310.0080.00414.02
5.6.300.0070.00713.99
5.6.290.0120.00014.37
5.6.280.0090.03617.54
5.6.270.0000.01013.84
5.6.260.0110.00714.33
5.6.250.0030.03417.63
5.6.240.0030.04817.62
5.6.230.0090.03817.40
5.6.220.0100.04017.44
5.6.210.0070.03817.19
5.6.200.0120.03817.53
5.6.190.0100.02817.62
5.6.180.0080.03917.60
5.6.170.0060.04317.55
5.6.160.0100.04317.75
5.6.150.0090.04917.59
5.6.140.0090.03717.63
5.6.130.0080.04417.64
5.6.120.0070.04717.55
5.6.110.0060.04217.53
5.6.100.0070.04517.58
5.6.90.0080.03417.63
5.6.80.0020.04517.19
5.6.70.0130.02517.19
5.6.60.0090.03917.37
5.6.50.0080.03917.40
5.6.40.0100.04217.31
5.6.30.0060.03017.22
5.6.20.0070.03017.33
5.6.10.0070.02517.30
5.6.00.0030.04817.29
5.5.380.0100.04015.81
5.5.370.0060.02715.63
5.5.360.0090.04315.82
5.5.350.0050.04715.69
5.5.340.0120.03215.97
5.5.330.0090.04216.01
5.5.320.0090.04315.91
5.5.310.0130.02715.93
5.5.300.0120.02515.94
5.5.290.0080.04015.89
5.5.280.0060.04316.04
5.5.270.0070.04215.90
5.5.260.0090.03715.84
5.5.250.0090.04415.78
5.5.240.0050.04315.57
5.5.230.0110.02515.56
5.5.220.0030.04315.55
5.5.210.0070.04015.52
5.5.200.0020.04215.48
5.5.190.0080.03715.68
5.5.180.0060.04115.50
5.5.170.0080.00311.11
5.5.160.0060.04015.49
5.5.150.0070.04415.55
5.5.140.0060.04015.58
5.5.130.0030.02515.56
5.5.120.0060.04415.51
5.5.110.0080.04015.58
5.5.100.0080.04115.50
5.5.90.0050.04315.52
5.5.80.0070.02315.43
5.5.70.0050.04215.48
5.5.60.0030.04515.48
5.5.50.0050.04115.49
5.5.40.0110.03315.52
5.5.30.0050.03715.52
5.5.20.0090.02215.51
5.5.10.0070.01815.48
5.5.00.0050.03815.42
5.4.450.0090.02615.10
5.4.440.0120.03815.10
5.4.430.0040.03615.08
5.4.420.0060.02615.15
5.4.410.0070.03315.15
5.4.400.0040.02315.01
5.4.390.0070.03714.94
5.4.380.0050.03814.84
5.4.370.0070.03815.02
5.4.360.0050.02414.96
5.4.350.0070.02314.90
5.4.340.0100.03014.86
5.4.330.0000.00710.98
5.4.320.0050.02914.90
5.4.310.0030.04014.85
5.4.300.0110.03215.06
5.4.290.0050.04115.00
5.4.280.0080.02515.02
5.4.270.0080.03714.98
5.4.260.0030.02514.92
5.4.250.0100.03315.03
5.4.240.0150.03114.94
5.4.230.0070.04014.98
5.4.220.0030.03115.01
5.4.210.0080.03614.96
5.4.200.0090.02014.93
5.4.190.0030.04314.98
5.4.180.0070.03714.96
5.4.170.0080.03514.97
5.4.160.0100.03714.98
5.4.150.0020.03614.85
5.4.140.0090.03513.57
5.4.130.0030.03013.56
5.4.120.0000.02213.61
5.4.110.0030.04313.58
5.4.100.0050.04013.56
5.4.90.0090.03413.58
5.4.80.0050.03913.64
5.4.70.0110.03313.56
5.4.60.0100.02713.62
5.4.50.0040.02513.62
5.4.40.0070.03713.68
5.4.30.0060.03513.63
5.4.20.0020.03313.66
5.4.10.0060.03913.59
5.4.00.0030.02513.33
5.3.290.0050.03912.76
5.3.280.0020.04312.67
5.3.270.0070.04112.74
5.3.260.0060.03212.71
5.3.250.0060.03312.68
5.3.240.0100.03512.68
5.3.230.0020.02612.67
5.3.220.0060.04012.65
5.3.210.0060.03812.65
5.3.200.0030.03912.71
5.3.190.0030.02712.66
5.3.180.0050.03812.66
5.3.170.0110.03112.65
5.3.160.0060.03112.71
5.3.150.0070.03612.66
5.3.140.0070.04312.72
5.3.130.0050.04012.70
5.3.120.0110.03512.72
5.3.110.0060.04012.65
5.3.100.0110.03712.40
5.3.90.0070.03812.45
5.3.80.0110.03712.35
5.3.70.0090.03712.39
5.3.60.0050.03712.44
5.3.50.0070.03012.41
5.3.40.0070.03812.40
5.3.30.0040.03212.39
5.3.20.0030.03412.29
5.3.10.0050.02912.28
5.3.00.0080.03712.20
5.2.170.0090.01811.05
5.2.160.0030.03311.04
5.2.150.0000.02310.92
5.2.140.0110.02711.04
5.2.130.0020.01810.93
5.2.120.0000.02310.99
5.2.110.0050.02811.00
5.2.100.0080.02910.89
5.2.90.0090.01410.93
5.2.80.0010.03110.95
5.2.70.0030.03510.99
5.2.60.0070.02510.95
5.2.50.0110.02710.93
5.2.40.0030.01810.93
5.2.30.0020.03510.87
5.2.20.0020.03410.93
5.2.10.0100.03010.85
5.2.00.0070.03010.73
5.1.60.0040.03010.46
5.1.50.0060.02710.38
5.1.40.0020.02110.45
5.1.30.0030.03210.59
5.1.20.0070.02910.58
5.1.10.0020.03110.48
5.1.00.0030.02910.48
5.0.50.0030.0249.64
5.0.40.0030.0179.65
5.0.30.0030.0369.61
5.0.20.0070.0229.61
5.0.10.0030.0239.61
5.0.00.0050.0209.61
4.4.90.0020.0189.61
4.4.80.0020.0119.61
4.4.70.0000.0219.61
4.4.60.0060.0159.61
4.4.50.0050.0179.61
4.4.40.0020.0309.61
4.4.30.0060.0179.61
4.4.20.0030.0209.61
4.4.10.0030.0199.61
4.4.00.0100.0239.61
4.3.110.0030.0189.61
4.3.100.0020.0179.61
4.3.90.0050.0159.61
4.3.80.0050.0279.61
4.3.70.0060.0179.61
4.3.60.0030.0189.61
4.3.50.0010.0209.61
4.3.40.0030.0139.61
4.3.30.0020.0189.61
4.3.20.0000.0219.61
4.3.10.0020.0159.61
4.3.00.0010.0149.61

preferences:
40.37 ms | 400 KiB | 5 Q