3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "NULL"; echo !empty($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)
8.3.60.0150.00418.31
8.3.50.0220.00621.02
8.3.40.0100.01018.53
8.3.30.0070.01420.21
8.3.20.0000.00720.25
8.3.10.0050.00322.14
8.3.00.0040.01122.38
8.2.180.0210.00018.30
8.2.170.0070.00722.96
8.2.160.0130.00721.96
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0050.00320.79
8.2.110.0060.00322.08
8.2.100.0110.00017.78
8.2.90.0000.00719.09
8.2.80.0030.00619.28
8.2.70.0060.00317.50
8.2.60.0040.00417.80
8.2.50.0050.00318.07
8.2.40.0090.00020.07
8.2.30.0040.00419.32
8.2.20.0050.00317.68
8.2.10.0040.00417.61
8.2.00.0070.00017.72
8.1.280.0040.01125.92
8.1.270.0000.00923.99
8.1.260.0090.00926.35
8.1.250.0040.00428.09
8.1.240.0030.00623.96
8.1.230.0120.00019.16
8.1.220.0080.00018.43
8.1.210.0090.00018.77
8.1.200.0040.00417.35
8.1.190.0000.00717.39
8.1.180.0000.00818.10
8.1.170.0000.00818.50
8.1.160.0030.00618.94
8.1.150.0000.00818.57
8.1.140.0040.00417.36
8.1.130.0030.00317.76
8.1.120.0030.00317.48
8.1.110.0000.00717.50
8.1.100.0000.00717.43
8.1.90.0000.00717.41
8.1.80.0030.00417.44
8.1.70.0000.00817.45
8.1.60.0030.00617.59
8.1.50.0030.00617.40
8.1.40.0040.00417.43
8.1.30.0040.00417.59
8.1.20.0000.00817.54
8.1.10.0040.00417.40
8.1.00.0040.00417.36
8.0.300.0040.00418.77
8.0.290.0040.00417.30
8.0.280.0070.00018.34
8.0.270.0030.00317.28
8.0.260.0080.00016.80
8.0.250.0000.00616.87
8.0.240.0070.00316.97
8.0.230.0070.00016.89
8.0.220.0080.00016.90
8.0.210.0030.00316.90
8.0.200.0030.00316.93
8.0.190.0030.00316.97
8.0.180.0000.00716.89
8.0.170.0050.00316.84
8.0.160.0050.00216.84
8.0.150.0070.00016.88
8.0.140.0060.00616.79
8.0.130.0050.00013.32
8.0.120.0000.00816.86
8.0.110.0070.00016.76
8.0.100.0030.00316.82
8.0.90.0050.00216.70
8.0.80.0030.01216.76
8.0.70.0000.00716.94
8.0.60.0040.00416.70
8.0.50.0030.00616.87
8.0.30.0090.00916.94
8.0.20.0090.01117.40
8.0.10.0080.00016.90
8.0.00.0090.01016.67
7.4.330.0000.00415.04
7.4.320.0030.00316.59
7.4.300.0030.00316.50
7.4.290.0030.00316.60
7.4.280.0000.00816.51
7.4.270.0030.00316.52
7.4.260.0060.00013.16
7.4.250.0000.00716.50
7.4.240.0030.00316.41
7.4.230.0030.00416.52
7.4.220.0070.01816.61
7.4.210.0090.00716.52
7.4.200.0070.00016.49
7.4.190.0060.00316.42
7.4.160.0120.00316.50
7.4.150.0090.01017.40
7.4.140.0110.00917.86
7.4.130.0090.01016.50
7.4.120.0080.00916.54
7.4.110.0130.00616.28
7.4.100.0100.00716.49
7.4.90.0120.00916.33
7.4.80.0060.01119.39
7.4.70.0180.00516.54
7.4.60.0060.00916.35
7.4.50.0040.00416.14
7.4.40.0030.01222.77
7.4.30.0040.01416.70
7.4.00.0090.00614.99
7.3.330.0000.00513.07
7.3.320.0020.00212.99
7.3.310.0030.00316.24
7.3.300.0040.00416.10
7.3.290.0040.01516.18
7.3.280.0090.01116.13
7.3.270.0030.01317.40
7.3.260.0080.01116.29
7.3.250.0110.01216.17
7.3.240.0100.01016.25
7.3.230.0080.00916.43
7.3.210.0120.00616.34
7.3.200.0040.01319.39
7.3.190.0040.01216.38
7.3.180.0100.00616.30
7.3.170.0090.01216.27
7.3.160.0030.01816.13
7.3.120.0060.01014.38
7.2.330.0060.01216.61
7.2.320.0170.00416.16
7.2.310.0110.00716.63
7.2.300.0070.01016.22
7.2.290.0100.00716.63
7.2.60.0110.00316.50
7.2.00.0070.01419.22
7.1.200.0040.01115.63
7.1.100.0060.00617.71
7.1.70.0050.00216.93
7.1.60.0030.02119.21
7.1.50.0250.01134.40
7.1.00.0070.06722.33
7.0.200.0040.00416.77
7.0.140.0070.06322.00
7.0.60.0070.07719.85
7.0.50.0270.03317.80
7.0.40.0130.07319.98
7.0.30.0230.05020.00
7.0.20.0200.05020.09
7.0.10.0430.06720.01
7.0.00.0130.07720.17
5.6.280.0000.07720.85
5.6.210.0170.07320.59
5.6.200.0130.05718.12
5.6.190.0030.07020.61
5.6.180.0230.07720.35
5.6.170.0200.04720.41
5.6.160.0000.04720.48
5.6.150.0170.04018.11
5.6.140.0100.03318.22
5.6.130.0030.05018.18
5.6.120.0030.07020.99
5.6.110.0000.04720.98
5.6.100.0070.08020.97
5.6.90.0170.07321.03
5.6.80.0070.05320.40
5.6.70.4100.03320.51
5.5.350.0030.04320.52
5.5.340.0070.08318.02
5.5.330.0100.07720.23
5.5.320.0330.04320.30
5.5.310.0300.07320.29
5.5.300.0100.07717.91
5.5.290.0030.04017.92
5.5.280.0130.06320.86
5.5.270.0070.03720.96
5.5.260.0100.05020.75
5.5.250.0100.07720.57
5.5.240.0100.08020.18
5.4.450.1900.04319.49
5.4.440.1670.04719.45
5.4.430.1870.03719.41
5.4.420.0370.04019.52
5.4.410.0030.04719.34
5.4.400.0200.04719.22
5.4.390.1630.03719.08
5.4.380.1570.03319.13
5.4.370.1830.02719.16
5.4.360.1800.03318.78
5.4.350.1570.03719.16
5.4.340.1900.03319.13
5.4.320.2100.05018.89
5.4.310.2070.04718.81
5.4.300.1930.04319.07
5.4.290.2070.04318.74
5.4.280.2030.04018.88
5.4.270.1770.03718.88
5.4.260.2030.04319.13
5.4.250.2130.03319.05
5.4.240.2300.04319.09
5.4.230.2330.04319.03
5.4.220.2170.04018.92
5.4.210.1870.04019.09
5.4.200.2200.04019.12
5.4.190.1870.04019.12
5.4.180.1870.04018.80
5.4.170.0330.04019.08
5.4.160.0000.04019.21
5.4.150.0000.04018.92
5.4.140.0570.04716.27
5.4.130.1770.03716.32
5.4.120.1970.02716.21
5.4.110.2670.02716.50
5.4.100.1870.03716.52
5.4.90.1900.03316.07
5.4.80.2200.04316.29
5.4.70.0030.03316.48
5.4.60.0030.03716.28
5.4.50.0800.03716.04
5.4.40.2000.04016.28
5.4.30.1770.04016.36
5.4.20.1600.04316.43
5.4.10.0000.05316.36
5.4.00.0030.04715.71
5.3.290.1130.03714.64
5.3.280.1870.03014.43
5.3.270.1870.04014.55
5.3.260.2430.05714.65
5.3.250.1930.03714.45
5.3.240.2130.04014.46
5.3.230.1970.04714.50
5.3.220.1970.05014.54
5.3.210.1800.03714.50
5.3.200.1970.04314.46
5.3.190.2000.04314.61
5.3.180.1900.03014.43
5.3.170.2030.04014.39
5.3.160.2000.04314.49
5.3.150.1730.04014.43
5.3.140.2030.04314.53
5.3.130.1930.03714.45
5.3.120.1800.03714.59
5.3.110.1800.04314.39
5.3.100.1870.03013.88
5.3.90.2000.04313.88
5.3.80.2100.03014.11
5.3.70.2130.04014.02
5.3.60.1930.04313.80
5.3.50.1770.03714.03
5.3.40.1800.03713.82
5.3.30.2270.03013.70
5.3.20.1870.03013.63
5.3.10.2070.03313.59
5.3.00.1930.03313.65
5.2.170.1530.03311.22
5.2.160.1530.02711.15
5.2.150.1170.04011.02
5.2.140.0030.03011.15
5.2.130.0000.06311.15
5.2.120.0600.05711.11
5.2.110.1770.03310.93
5.2.100.1470.03010.96
5.2.90.1570.02711.18
5.2.80.1700.04010.89
5.2.70.1470.04011.14
5.2.60.1670.02711.06
5.2.50.1730.02310.95
5.2.40.1330.03311.04
5.2.30.1530.03011.01
5.2.20.1230.02710.88
5.2.10.1500.03010.75
5.2.00.0970.02310.66
5.1.60.0000.03010.11
5.1.50.0030.0339.85
5.1.40.0000.03010.13
5.1.30.0500.03010.44
5.1.20.1470.03010.31
5.1.10.1270.02710.04
5.1.00.1370.0209.96
5.0.50.0770.0239.43
5.0.40.0630.0209.43
5.0.30.0700.0279.43
5.0.20.0700.0139.43
5.0.10.0630.0209.43
5.0.00.0630.0309.43
4.4.90.0470.0179.43
4.4.80.0800.0209.43
4.4.70.0600.0179.43
4.4.60.0700.0139.43
4.4.50.0600.0179.43
4.4.40.0630.0239.43
4.4.30.0630.0139.43
4.4.20.0600.0179.43
4.4.10.0630.0139.43
4.4.00.0600.0279.43
4.3.110.0200.0209.43
4.3.100.0030.0139.43
4.3.90.0000.0139.43
4.3.80.0000.0239.43
4.3.70.0000.0139.43
4.3.60.0070.0139.43
4.3.50.0000.0239.43
4.3.40.0030.0209.43
4.3.30.0030.0179.43
4.3.20.0170.0179.43
4.3.10.0300.0179.43
4.3.00.0330.0139.43

preferences:
51.15 ms | 401 KiB | 5 Q