3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(empty($var)); $var = null; var_dump(empty($var)); $var = false; var_dump(empty($var)); $var = '0'; var_dump(empty($var)); $var = 0; var_dump(empty($var));

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)
8.3.40.0070.00718.40
8.3.30.0070.01018.42
8.3.20.0000.00918.36
8.3.10.0050.00320.92
8.3.00.0040.00423.30
8.2.170.0110.00422.96
8.2.160.0070.00720.37
8.2.150.0030.00624.18
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0040.00421.04
8.2.110.0070.00320.51
8.2.100.0120.00017.66
8.2.90.0050.00219.13
8.2.80.0000.00817.97
8.2.70.0060.00317.50
8.2.60.0020.00517.91
8.2.50.0030.00619.23
8.2.40.0000.00817.91
8.2.30.0000.00719.77
8.2.20.0000.00817.60
8.2.10.0040.00417.52
8.2.00.0000.00817.61
8.1.270.0070.00023.99
8.1.260.0000.00726.35
8.1.250.0070.00028.09
8.1.240.0030.00622.37
8.1.230.0090.00320.84
8.1.220.0000.00918.77
8.1.210.0050.00318.77
8.1.200.0090.00017.23
8.1.190.0030.00617.53
8.1.180.0000.00818.10
8.1.170.0050.00318.53
8.1.160.0040.00418.78
8.1.150.0000.00718.61
8.1.140.0070.00017.30
8.1.130.0070.00017.88
8.1.120.0000.00717.41
8.1.110.0000.00717.25
8.1.100.0000.00917.28
8.1.90.0030.00517.38
8.1.80.0000.00817.38
8.1.70.0000.00617.37
8.1.60.0040.00417.52
8.1.50.0040.00417.43
8.1.40.0040.00417.46
8.1.30.0000.00817.55
8.1.20.0090.00017.53
8.1.10.0050.00217.41
8.1.00.0000.00717.30
8.0.300.0060.00319.85
8.0.290.0000.00817.05
8.0.280.0000.00818.37
8.0.270.0070.00017.05
8.0.260.0000.00616.62
8.0.250.0000.00716.86
8.0.240.0000.00816.82
8.0.230.0000.00716.84
8.0.220.0000.00716.75
8.0.210.0040.00416.82
8.0.200.0030.00316.80
8.0.190.0000.00716.88
8.0.180.0000.00716.86
8.0.170.0080.00016.89
8.0.160.0000.00816.84
8.0.150.0040.00416.85
8.0.140.0040.00416.65
8.0.130.0000.00513.30
8.0.120.0030.00516.84
8.0.110.0040.00416.60
8.0.100.0040.00416.84
8.0.90.0000.00716.63
8.0.80.0070.01416.88
8.0.70.0050.00216.87
8.0.60.0040.00416.73
8.0.50.0000.00716.85
8.0.30.0100.00816.89
8.0.20.0070.01417.40
8.0.10.0000.00917.06
8.0.00.0090.00816.63
7.4.330.0000.00514.73
7.4.320.0000.00616.43
7.4.300.0030.00316.45
7.4.290.0000.00716.41
7.4.280.0000.00716.43
7.4.270.0030.00316.48
7.4.260.0030.00313.18
7.4.250.0070.00016.54
7.4.240.0070.00016.33
7.4.230.0030.00316.52
7.4.220.0060.01216.52
7.4.210.0100.00816.44
7.4.200.0050.00316.52
7.4.190.0000.00716.52
7.4.160.0130.00616.32
7.4.150.0090.00917.40
7.4.140.0130.00717.86
7.4.130.0080.01016.56
7.4.120.0090.00816.44
7.4.110.0140.00416.42
7.4.100.0120.00316.46
7.4.90.0090.00916.58
7.4.80.0090.00919.37
7.4.70.0130.00316.41
7.4.60.0030.01316.32
7.4.50.0040.00416.48
7.4.40.0080.00322.52
7.4.30.0100.00716.34
7.4.00.0080.01014.71
7.3.330.0050.00013.05
7.3.320.0040.00313.04
7.3.310.0070.00016.25
7.3.300.0030.00316.08
7.3.290.0060.01516.24
7.3.280.0050.01216.15
7.3.270.0070.01017.40
7.3.260.0190.00518.24
7.3.250.0130.01016.34
7.3.240.0130.00316.09
7.3.230.0120.00916.40
7.3.210.0080.01016.50
7.3.200.0070.01519.39
7.3.190.0090.01216.50
7.3.180.0090.00616.42
7.3.170.0090.00616.27
7.3.160.0070.01516.13
7.3.120.0070.00914.73
7.3.110.0040.01414.94
7.3.100.0030.01414.66
7.3.90.0060.01214.91
7.3.80.0000.01314.64
7.3.70.0070.00714.71
7.3.60.0040.01114.56
7.3.50.0030.01014.79
7.3.40.0070.01414.68
7.3.30.0040.00714.60
7.3.20.0040.00816.54
7.3.10.0090.00016.39
7.3.00.0030.01016.25
7.2.330.0070.01016.28
7.2.320.0140.00416.57
7.2.310.0090.01216.26
7.2.300.0030.01316.50
7.2.290.0050.01016.17
7.2.250.0070.00714.84
7.2.240.0030.01414.73
7.2.230.0100.00615.07
7.2.220.0080.00315.08
7.2.210.0070.01114.61
7.2.200.0060.01214.98
7.2.190.0060.00914.53
7.2.180.0090.00614.82
7.2.170.0140.00714.75
7.2.00.0060.01019.49
7.1.330.0100.00315.89
7.1.320.0000.01415.75
7.1.310.0060.01015.70
7.1.300.0060.00615.47
7.1.290.0030.01415.39
7.1.280.0070.01015.86
7.1.270.0100.00615.56
7.1.260.0030.00615.43
7.1.100.0040.01118.09
7.1.70.0030.00516.82
7.1.60.0070.01719.40
7.1.50.0130.01616.96
7.1.00.0000.06322.36
7.0.200.0000.00916.66
7.0.140.0100.06721.98
7.0.60.0070.08719.93
7.0.50.0130.08017.79
7.0.40.0070.04719.96
7.0.30.0270.09020.16
7.0.20.0170.04320.13
7.0.10.0300.08020.20
7.0.00.0070.08320.01
5.6.280.0170.06021.06
5.6.210.0100.03720.66
5.6.200.0100.06318.24
5.6.190.0130.04320.62
5.6.180.0330.05720.43
5.6.170.0300.07720.52
5.6.160.0100.04320.47
5.6.150.0100.07018.12
5.6.140.0030.04018.19
5.6.130.0100.03318.07
5.6.120.0070.05320.91
5.6.110.0130.08321.11
5.6.100.0000.04320.88
5.6.90.0100.07721.07
5.6.80.0100.05320.37
5.6.70.2330.04020.52
5.5.350.0330.06020.32
5.5.340.0030.08317.99
5.5.330.0100.05720.13
5.5.320.0070.07720.15
5.5.310.0270.07720.43
5.5.300.0130.07318.00
5.5.290.0030.04317.91
5.5.280.0070.04320.80
5.5.270.0100.06720.93
5.5.260.0030.04320.87
5.5.250.0000.07720.54
5.5.240.0100.07320.22
5.4.450.1430.04019.61
5.4.440.1900.05319.10
5.4.430.1530.04319.41
5.4.420.1570.03719.41
5.4.410.1570.04019.33
5.4.400.0200.04019.25
5.4.390.0100.04019.08
5.4.380.0030.03719.25
5.4.370.0530.04318.79
5.4.360.1600.03719.15
5.4.350.1400.04019.06
5.4.340.1570.04019.24
5.4.320.1600.03719.13
5.4.310.1630.03319.22
5.4.300.1630.03318.88
5.4.290.1600.03718.88
5.4.280.1370.04019.27
5.4.270.1630.04719.08
5.4.260.1800.02719.05
5.4.250.1370.04319.08
5.4.240.0600.03718.88
5.4.230.0170.03719.21
5.4.220.1530.03319.13
5.4.210.1430.04318.88
5.4.200.1370.04019.07
5.4.190.1570.03318.76
5.4.180.1600.03719.06
5.4.170.1600.03718.93
5.4.160.1570.03719.14
5.4.150.1770.04019.06
5.4.140.1700.03016.29
5.4.130.1630.03316.44
5.4.120.1570.03716.30
5.4.110.1630.03016.39
5.4.100.1670.04016.43
5.4.90.1670.03316.39
5.4.80.1630.03316.21
5.4.70.1600.03716.39
5.4.60.1570.04016.43
5.4.50.1630.03316.41
5.4.40.1630.03316.27
5.4.30.2000.03716.45
5.4.20.1600.03716.36
5.4.10.2000.04716.47
5.4.00.1770.03015.61
5.3.290.1670.04314.61
5.3.280.1630.03714.59
5.3.270.0430.06314.46
5.3.260.0030.04714.69
5.3.250.0170.04014.50
5.3.240.1600.03014.70
5.3.230.1630.03014.54
5.3.220.1900.04014.40
5.3.210.1700.03714.47
5.3.200.1730.04014.61
5.3.190.1470.03714.35
5.3.180.1700.03714.46
5.3.170.1630.03714.54
5.3.160.1700.03014.51
5.3.150.2330.03314.39
5.3.140.1570.03714.42
5.3.130.0530.04714.49
5.3.120.0000.04014.50
5.3.110.0100.06714.39
5.3.100.1770.04313.89
5.3.90.1600.04313.86
5.3.80.1570.04713.99
5.3.70.1530.04713.96
5.3.60.1400.03313.94
5.3.50.1570.05013.79
5.3.40.1600.04313.99
5.3.30.1430.04314.00
5.3.20.1370.04013.63
5.3.10.1630.04713.48
5.3.00.1530.04013.48
5.2.170.1100.03311.09
5.2.160.1100.03011.00
5.2.150.1370.02711.06
5.2.140.1300.03711.20
5.2.130.1430.03310.95
5.2.120.1170.02310.99
5.2.110.1130.03011.15
5.2.100.1400.03310.94
5.2.90.1200.02711.03
5.2.80.1370.04310.93
5.2.70.1200.03711.14
5.2.60.1130.03010.93
5.2.50.1170.03310.84
5.2.40.1170.03310.89
5.2.30.0930.03010.81
5.2.20.1070.04010.86
5.2.10.1130.03311.01
5.2.00.0970.02710.63
5.1.60.0070.04010.04
5.1.50.0030.05310.07
5.1.40.0030.02710.05
5.1.30.0000.03310.25
5.1.20.0030.04710.32
5.1.10.0800.03010.15
5.1.00.1100.02710.06
5.0.50.0570.0338.48
5.0.40.0600.0338.28
5.0.30.0500.0308.14
5.0.20.0570.0208.10
5.0.10.0500.0178.24
5.0.00.0530.0408.20
4.4.90.0400.0137.25
4.4.80.0570.0137.25
4.4.70.0530.0177.25
4.4.60.0570.0237.25
4.4.50.0570.0137.25
4.4.40.0630.0307.25
4.4.30.0570.0177.25
4.4.20.0530.0177.25
4.4.10.0730.0137.25
4.4.00.0530.0237.25
4.3.110.0570.0107.25
4.3.100.0530.0137.25
4.3.90.0570.0107.25
4.3.80.0670.0337.25
4.3.70.0570.0137.25
4.3.60.0000.0137.25
4.3.50.0000.0177.25
4.3.40.0000.0237.25
4.3.30.0030.0177.25
4.3.20.0030.0177.25
4.3.10.0000.0237.25
4.3.00.0000.0177.25

preferences:
45.94 ms | 400 KiB | 5 Q