3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 'test'; $b = empty($a['a']); var_dump($b);

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)
8.3.40.0040.01118.63
8.3.30.0000.01418.95
8.3.20.0000.00820.27
8.3.10.0080.00021.75
8.3.00.0080.00019.13
8.2.170.0110.00422.96
8.2.160.0100.00320.57
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0040.00426.16
8.2.120.0040.00421.15
8.2.110.0050.00322.12
8.2.100.0000.01319.63
8.2.90.0060.00319.22
8.2.80.0070.00317.97
8.2.70.0060.00317.63
8.2.60.0000.00817.93
8.2.50.0050.00318.07
8.2.40.0080.00018.21
8.2.30.0000.00817.96
8.2.20.0040.00417.58
8.2.10.0050.00318.05
8.2.00.0040.00417.59
8.1.270.0040.00422.02
8.1.260.0040.00426.35
8.1.250.0050.00228.09
8.1.240.0060.00323.98
8.1.230.0040.00719.22
8.1.220.0070.00017.74
8.1.210.0050.00318.77
8.1.200.0090.00017.35
8.1.190.0000.00817.23
8.1.180.0090.00018.10
8.1.170.0030.00518.39
8.1.160.0030.00321.81
8.1.150.0030.00318.80
8.1.140.0070.00017.34
8.1.130.0030.00317.80
8.1.120.0000.00817.45
8.1.110.0040.00417.43
8.1.100.0030.00317.38
8.1.90.0040.00417.38
8.1.80.0000.00817.37
8.1.70.0000.00817.32
8.1.60.0050.00317.40
8.1.50.0040.00417.45
8.1.40.0070.00017.34
8.1.30.0090.00017.47
8.1.20.0040.00417.55
8.1.10.0000.00817.57
8.1.00.0000.00717.36
8.0.300.0040.00418.77
8.0.290.0040.00416.63
8.0.280.0030.00318.45
8.0.270.0050.00517.11
8.0.260.0000.00617.14
8.0.250.0070.00016.95
8.0.240.0030.00316.84
8.0.230.0030.00316.77
8.0.220.0030.00316.79
8.0.210.0030.00316.80
8.0.200.0030.00316.75
8.0.190.0040.00416.77
8.0.180.0070.00016.84
8.0.170.0030.00516.84
8.0.160.0000.00716.80
8.0.150.0080.00016.69
8.0.140.0000.01116.73
8.0.130.0000.00513.22
8.0.120.0040.00416.75
8.0.110.0000.00716.82
8.0.100.0000.00716.76
8.0.90.0000.00716.62
8.0.80.0060.00916.86
8.0.70.0030.00416.86
8.0.60.0070.00016.85
8.0.50.0000.00716.82
8.0.30.0090.01016.79
8.0.20.0120.00917.40
8.0.10.0070.00016.87
8.0.00.0090.00916.73
7.4.330.0000.00515.07
7.4.320.0000.00716.45
7.4.300.0060.00016.44
7.4.290.0000.00716.42
7.4.280.0040.00416.27
7.4.270.0000.00716.38
7.4.260.0030.00316.43
7.4.250.0070.00016.46
7.4.240.0010.00616.43
7.4.230.0030.00316.27
7.4.220.0060.01016.63
7.4.210.0080.00716.36
7.4.200.0030.00316.60
7.4.160.0110.00516.27
7.4.150.0130.01017.40
7.4.140.0130.01817.86
7.4.130.0100.00916.49
7.4.120.0150.00516.34
7.4.110.0070.01016.31
7.4.100.0060.00916.39
7.4.90.0110.00616.26
7.4.80.0100.01019.39
7.4.70.0080.00816.53
7.4.60.0100.00616.31
7.4.50.0000.00816.48
7.4.40.0110.00816.14
7.4.30.0080.00816.27
7.4.10.0150.00314.43
7.4.00.0040.01414.87
7.3.330.0030.00313.11
7.3.320.0020.00213.08
7.3.310.0000.00716.08
7.3.300.0040.00416.19
7.3.290.0100.00316.14
7.3.280.0090.00816.19
7.3.270.0100.00717.40
7.3.260.0130.00616.07
7.3.250.0040.01316.21
7.3.240.0090.00916.46
7.3.230.0080.00916.39
7.3.210.0070.01016.41
7.3.200.0110.01119.39
7.3.190.0060.01516.02
7.3.180.0120.00316.22
7.3.170.0090.00616.27
7.3.160.0030.01216.19
7.3.130.0070.01114.31
7.3.120.0030.01414.63
7.3.110.0100.00614.64
7.3.100.0100.00614.50
7.3.90.0100.00614.65
7.3.80.0000.01415.00
7.3.70.0060.00914.78
7.3.60.0110.00014.33
7.3.50.0060.01214.84
7.3.40.0130.00014.80
7.3.30.0070.01014.64
7.3.20.0110.00416.71
7.3.10.0120.00616.57
7.3.00.0090.00016.52
7.2.330.0120.00616.35
7.2.320.0070.01416.40
7.2.310.0120.01216.20
7.2.300.0080.00816.58
7.2.290.0190.00016.30
7.2.260.0080.01114.81
7.2.250.0110.00714.89
7.2.240.0030.00914.89
7.2.230.0130.00714.81
7.2.220.0100.00714.88
7.2.210.0000.00914.93
7.2.200.0030.00614.91
7.2.190.0030.01015.09
7.2.180.0040.01114.53
7.2.170.0060.01014.82
7.2.160.0070.00814.81
7.2.150.0000.01316.82
7.2.140.0090.00916.63
7.2.130.0070.00716.75
7.2.120.0030.00916.64
7.2.110.0060.00916.69
7.2.100.0040.01516.73
7.2.90.0070.01016.84
7.2.80.0040.00716.84
7.2.70.0090.00617.00
7.2.60.0050.00816.67
7.2.50.0090.00316.95
7.2.40.0090.00616.53
7.2.30.0000.01116.96
7.2.20.0040.00716.73
7.2.10.0070.01116.87
7.2.00.0000.01116.82
7.1.330.0060.00615.84
7.1.320.0040.00715.76
7.1.310.0100.00315.73
7.1.300.0030.01315.75
7.1.290.0030.01415.91
7.1.280.0070.00715.79
7.1.270.0000.01715.39
7.1.260.0030.01115.77
7.1.250.0030.00615.65
7.1.240.0060.01015.73
7.1.230.0080.00615.88
7.1.220.0030.01115.75
7.1.210.0140.00015.71
7.1.200.0040.00815.67
7.1.190.0030.00615.48
7.1.180.0070.00715.96
7.1.170.0030.00915.44
7.1.160.0000.01215.50
7.1.150.0070.00715.99
7.1.140.0040.00415.68
7.1.130.0040.00415.55
7.1.120.0070.00715.59
7.1.110.0070.00315.99
7.1.100.0150.00015.58
7.1.90.0070.00315.48
7.1.80.0110.00315.61
7.1.70.0030.00916.16
7.1.60.0090.00917.47
7.1.50.0070.01316.39
7.1.40.0000.00915.51
7.1.30.0060.00615.72
7.1.20.0080.00415.53
7.1.10.0030.01015.72
7.1.00.0050.04018.91
7.0.330.0070.00715.30
7.0.320.0040.00815.31
7.0.310.0030.01015.37
7.0.300.0050.00315.45
7.0.290.0070.00715.09
7.0.280.0090.00615.14
7.0.270.0030.01315.28
7.0.260.0030.00915.48
7.0.250.0000.00815.10
7.0.240.0070.00715.46
7.0.230.0090.00615.28
7.0.220.0050.00715.56
7.0.210.0040.01115.46
7.0.200.0020.01016.05
7.0.190.0030.00715.20
7.0.180.0040.01115.32
7.0.170.0120.00315.33
7.0.160.0030.00915.41
7.0.150.0040.00715.21
7.0.140.0030.03918.74
7.0.130.0070.00715.45
7.0.120.0070.00715.25
7.0.110.0000.01015.09
7.0.100.0040.01115.27
7.0.90.0000.01115.26
7.0.80.0100.00315.28
7.0.70.0030.01015.30
7.0.60.0040.03017.59
7.0.50.0080.04316.51
7.0.40.0030.04216.69
7.0.30.0200.04216.71
7.0.20.0180.02216.58
7.0.10.0080.04216.76
7.0.00.0050.04816.81
5.6.400.0130.00314.13
5.6.390.0100.00314.33
5.6.380.0070.00714.20
5.6.370.0040.01214.27
5.6.360.0060.00614.25
5.6.350.0060.00614.48
5.6.340.0070.00714.05
5.6.330.0000.01014.25
5.6.320.0000.01213.97
5.6.310.0030.00614.31
5.6.300.0000.01114.30
5.6.290.0030.01014.39
5.6.280.0030.04317.63
5.6.270.0070.01014.25
5.6.260.0070.00714.55
5.6.250.0000.01614.13
5.6.240.0070.00714.25
5.6.230.0090.00314.34
5.6.220.0030.00613.91
5.6.210.0080.04017.31
5.6.200.0060.04616.29
5.6.190.0110.04317.47
5.6.180.0180.02817.22
5.6.170.0120.04817.28
5.6.160.0060.04417.47
5.6.150.0020.04516.12
5.6.140.0050.04316.21
5.6.130.0050.04616.24
5.6.120.0080.04017.72
5.6.110.0030.04817.42
5.6.100.0060.03517.64
5.6.90.0090.04917.54
5.6.80.0100.04517.21
5.6.70.0120.00614.01
5.6.60.0070.00714.17
5.6.50.0070.00714.16
5.6.40.0000.01314.16
5.6.30.0090.00614.05
5.6.20.0090.00614.28
5.6.10.0120.00314.18
5.6.00.0030.01514.13
5.5.380.0030.01014.00
5.5.370.0000.01414.40
5.5.360.0090.00614.20
5.5.350.0200.03517.33
5.5.340.0090.04015.95
5.5.330.0090.02517.11
5.5.320.0070.02917.25
5.5.310.0260.03717.43
5.5.300.0060.04516.03
5.5.290.0100.01716.19
5.5.280.0050.02517.50
5.5.270.0090.04317.53
5.5.260.0130.03817.50
5.5.250.0130.03617.39
5.5.240.0050.03017.12
5.5.230.0120.00914.35
5.5.220.0030.01214.05
5.5.210.0030.01013.90
5.5.200.0060.00914.15
5.5.190.0040.01114.06
5.5.180.0000.01114.13
5.5.170.0030.01314.16
5.5.160.0100.00314.11
5.5.150.0090.00614.21
5.5.140.0120.00313.84
5.5.130.0040.00713.73
5.5.120.0070.00713.90
5.5.110.0060.00614.14
5.5.100.0110.00713.63
5.5.90.0030.01513.95
5.5.80.0040.00814.15
5.5.70.0070.01013.91
5.5.60.0060.00613.96
5.5.50.0100.00313.93
5.5.40.0060.00613.93
5.5.30.0030.01013.97
5.5.20.0060.00913.97
5.5.10.0040.00413.85
5.5.00.0070.00714.06
5.4.450.0420.03615.18
5.4.440.0330.03614.92
5.4.430.0600.02515.27
5.4.420.0370.03115.18
5.4.410.0410.02315.12
5.4.400.0350.02714.89
5.4.390.0170.03014.66
5.4.380.0130.03514.88
5.4.370.0100.03014.66
5.4.360.0110.02414.79
5.4.350.0060.02311.23
5.4.340.0040.02311.32
5.4.330.0090.00610.83
5.4.320.0040.02111.53
5.4.310.0030.02711.68
5.4.300.0040.02211.68
5.4.290.0050.02311.50
5.4.280.0030.02211.51
5.4.270.0060.02011.47
5.4.260.0040.02211.66
5.4.250.0060.02311.65
5.4.240.0080.02311.43
5.4.230.0030.02211.61
5.4.220.0070.02011.57
5.4.210.0050.01911.44
5.4.200.0040.02411.43
5.4.190.0060.02211.67
5.4.180.0070.02111.55
5.4.170.0050.02311.62
5.4.160.0030.02011.48
5.4.150.0060.02611.51
5.4.140.0020.02211.45
5.4.130.0030.02111.43
5.4.120.0030.02211.41
5.4.110.0040.02211.35
5.4.100.0050.02511.52
5.4.90.0040.02511.40
5.4.80.0030.02411.52
5.4.70.0060.01911.44
5.4.60.0050.01811.47
5.4.50.0080.01811.32
5.4.40.0040.02111.46
5.4.30.0070.02011.37
5.4.20.0040.02211.35
5.4.10.0110.01911.42
5.4.00.0020.02411.05
5.3.290.0040.04212.80
5.3.280.0060.03812.71
5.3.270.0060.04212.72
5.3.260.0100.03512.72
5.3.250.0040.03812.72
5.3.240.0090.03412.72
5.3.230.0060.03712.71
5.3.220.0050.03812.68
5.3.210.0050.04012.68
5.3.200.0080.03612.68
5.3.190.0080.03612.67
5.3.180.0090.03412.67
5.3.170.0050.03712.67
5.3.160.0100.03512.67
5.3.150.0110.03412.68
5.3.140.0060.03712.66
5.3.130.0050.05012.66
5.3.120.0080.04112.66
5.3.110.0060.03912.66
5.3.100.0060.04012.11
5.3.90.0020.04112.08
5.3.80.0090.03812.08
5.3.70.0070.03712.07
5.3.60.0110.03412.06
5.3.50.0070.03712.00
5.3.40.0070.03412.00
5.3.30.0070.03411.94
5.3.20.0060.03411.71
5.3.10.0080.03411.69
5.3.00.0050.04811.67
5.2.170.0040.0329.18
5.2.160.0050.0309.18
5.2.150.0050.0309.17
5.2.140.0040.0349.17
5.2.130.0100.0319.14
5.2.120.0040.0289.13
5.2.110.0040.0299.14
5.2.100.0040.0299.14
5.2.90.0040.0309.13
5.2.80.0060.0389.13
5.2.70.0060.0309.13
5.2.60.0040.0329.09
5.2.50.0080.0269.05
5.2.40.0050.0329.03
5.2.30.0060.0289.00
5.2.20.0050.0308.99
5.2.10.0040.0338.92
5.2.00.0040.0298.77
5.1.60.0060.0288.06
5.1.50.0100.0228.06
5.1.40.0060.0228.04
5.1.30.0050.0258.39
5.1.20.0030.0348.41
5.1.10.0020.0278.13
5.1.00.0040.0258.13
5.0.50.0040.0206.61
5.0.40.0030.0196.47
5.0.30.0030.0346.29
5.0.20.0060.0206.25
5.0.10.0050.0196.23
5.0.00.0050.0416.22
4.4.90.0040.0144.78
4.4.80.0040.0194.76
4.4.70.0030.0154.76
4.4.60.0010.0174.76
4.4.50.0090.0124.77
4.4.40.0030.0254.71
4.4.30.0020.0164.76
4.4.20.0030.0174.85
4.4.10.0050.0144.85
4.4.00.0010.0274.76
4.3.110.0020.0164.67
4.3.100.0040.0134.66
4.3.90.0040.0144.63
4.3.80.0020.0264.58
4.3.70.0040.0134.63
4.3.60.0030.0144.63
4.3.50.0000.0184.62
4.3.40.0060.0224.54
4.3.30.0000.0183.28
4.3.20.0020.0163.25
4.3.10.0020.0173.21
4.3.00.0130.0237.13

preferences:
42.49 ms | 400 KiB | 5 Q