3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a1 = false; $a2 = ''; $a3 = 0; $a4 = '0'; var_dump(empty($a1)); var_dump(empty($a2)); var_dump(empty($a3)); var_dump(empty($a4));

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)
8.3.60.0110.00416.63
8.3.50.0130.00321.99
8.3.40.0110.00318.50
8.3.30.0140.00719.07
8.3.20.0050.00320.12
8.3.10.0030.00521.77
8.3.00.0080.00019.02
8.2.180.0130.00916.38
8.2.170.0110.00422.96
8.2.160.0070.00720.32
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0040.00419.64
8.2.110.0030.00722.13
8.2.100.0090.00317.78
8.2.90.0080.00019.09
8.2.80.0060.00317.97
8.2.70.0060.00317.13
8.2.60.0080.00017.68
8.2.50.0040.00418.07
8.2.40.0000.00819.95
8.2.30.0050.00217.94
8.2.20.0040.00417.52
8.2.10.0050.00317.87
8.2.00.0040.00417.48
8.1.280.0070.00725.92
8.1.270.0040.00420.65
8.1.260.0070.00026.35
8.1.250.0070.00028.09
8.1.240.0040.00422.14
8.1.230.0000.01318.97
8.1.220.0030.00617.74
8.1.210.0000.00818.77
8.1.200.0030.00617.23
8.1.190.0030.00617.10
8.1.180.0060.00318.10
8.1.170.0030.00620.30
8.1.160.0000.00821.90
8.1.150.0000.00718.82
8.1.140.0040.00417.29
8.1.130.0030.00317.72
8.1.120.0050.00517.42
8.1.110.0000.00917.30
8.1.100.0040.00417.39
8.1.90.0000.00717.27
8.1.80.0000.00717.26
8.1.70.0030.00317.40
8.1.60.0040.00417.52
8.1.50.0040.00417.34
8.1.40.0050.00317.45
8.1.30.0040.00417.48
8.1.20.0030.00517.59
8.1.10.0040.00417.44
8.1.00.0120.00017.10
8.0.300.0040.00419.69
8.0.290.0070.00016.58
8.0.280.0000.00718.42
8.0.270.0040.00417.24
8.0.260.0060.00017.23
8.0.250.0040.00416.95
8.0.240.0060.00016.85
8.0.230.0070.00016.84
8.0.220.0070.00016.75
8.0.210.0030.00316.86
8.0.200.0040.00416.84
8.0.190.0000.00716.88
8.0.180.0000.00816.83
8.0.170.0000.00716.88
8.0.160.0050.00316.86
8.0.150.0000.00716.73
8.0.140.0070.00016.77
8.0.130.0000.00513.19
8.0.120.0000.00816.75
8.0.110.0030.00516.86
8.0.100.0000.00716.77
8.0.90.0030.00516.95
8.0.80.0030.01316.80
8.0.70.0050.00316.64
8.0.60.0040.00416.65
8.0.50.0030.00516.82
8.0.30.0100.01317.01
8.0.20.0130.00517.40
8.0.10.0070.00016.89
8.0.00.0110.00616.57
7.4.330.0000.00515.03
7.4.320.0030.00316.47
7.4.300.0030.00316.45
7.4.290.0050.00216.45
7.4.280.0050.00316.44
7.4.270.0030.00316.54
7.4.260.0040.00416.44
7.4.250.0030.00316.50
7.4.240.0020.00516.54
7.4.230.0030.00316.59
7.4.220.0030.01516.55
7.4.210.0100.01016.30
7.4.200.0040.00416.61
7.4.160.0110.00516.52
7.4.150.0170.02717.40
7.4.140.0130.00917.86
7.4.130.0110.00816.55
7.4.120.0130.00616.58
7.4.110.0170.00716.39
7.4.100.0130.00816.52
7.4.90.0030.01416.51
7.4.80.0040.01419.39
7.4.70.0100.00616.39
7.4.60.0130.00616.44
7.4.50.0000.00716.50
7.4.40.0130.00316.55
7.4.30.0030.01716.51
7.4.00.0000.01614.98
7.3.330.0050.00013.06
7.3.320.0000.01212.97
7.3.310.0030.00316.23
7.3.300.0030.00316.12
7.3.290.0080.00916.13
7.3.280.0110.00716.15
7.3.270.0090.00917.40
7.3.260.0080.00816.16
7.3.250.0080.01516.29
7.3.240.0070.01016.21
7.3.230.0130.00916.39
7.3.210.0120.00416.26
7.3.200.0030.01519.39
7.3.190.0100.00616.30
7.3.180.0080.00816.22
7.3.170.0130.00316.27
7.3.160.0030.01216.27
7.3.10.0100.00316.50
7.3.00.0040.01116.34
7.2.330.0160.00316.59
7.2.320.0140.00316.58
7.2.310.0070.01016.32
7.2.300.0140.00916.41
7.2.290.0160.00316.57
7.2.130.0060.00916.94
7.2.120.0070.00716.80
7.2.110.0080.00416.72
7.2.100.0080.00416.83
7.2.90.0030.00916.82
7.2.80.0040.00716.64
7.2.70.0070.00316.53
7.2.60.0030.00616.65
7.2.50.0040.01116.63
7.2.40.0100.00316.89
7.2.30.0080.00316.68
7.2.20.0040.01116.67
7.2.10.0080.00416.66
7.2.00.0060.00617.77
7.1.250.0120.00015.62
7.1.100.0080.00818.10
7.1.70.0040.00416.78
7.1.60.0070.01019.50
7.1.50.0080.00316.30
7.1.00.0000.08022.40
7.0.200.0000.00716.63
7.0.140.0030.05021.95
7.0.60.0100.07019.93
7.0.50.0070.08017.66
7.0.40.0100.07720.20
7.0.30.0270.05020.18
7.0.20.0270.07020.16
7.0.10.0200.07720.12
7.0.00.0170.07720.20
5.6.280.0000.07721.07
5.6.210.0100.07720.71
5.6.200.0070.07018.15
5.6.190.0070.09720.27
5.6.180.0300.06020.39
5.6.170.0270.06020.50
5.6.160.0130.08020.49
5.6.150.0030.05018.18
5.6.140.0030.08318.21
5.6.130.0200.06718.08
5.6.120.0100.07721.11
5.6.110.0130.08320.97
5.6.100.0070.07020.98
5.6.90.0000.08320.96
5.6.80.0130.06320.53
5.6.70.0130.08020.33
5.5.350.0170.06720.43
5.5.340.0070.08317.95
5.5.330.0030.06320.37
5.5.320.0070.08720.23
5.5.310.0170.04320.23
5.5.300.0130.06017.88
5.5.290.0070.08018.01
5.5.280.0130.08320.88
5.5.270.0130.07720.86
5.5.260.0000.05320.63
5.5.250.0200.07320.65
5.5.240.0070.08020.31
5.4.450.0270.04719.49
5.4.440.1130.06019.48
5.4.430.0900.05719.47
5.4.420.1000.05719.50
5.4.410.1030.05719.42
5.4.400.0200.05318.57
5.4.390.0300.06318.70
5.4.380.0200.06718.59
5.4.370.0230.05018.50
5.4.360.0170.05718.64
5.4.350.0170.05718.63
5.4.340.0300.04718.55
5.4.320.0200.05718.61
5.4.310.0170.06018.67
5.4.300.0270.07018.44
5.4.290.0200.07318.63
5.4.280.0230.05018.58
5.4.270.0370.03318.70
5.4.260.0200.05018.58
5.4.250.0330.05018.47
5.4.240.0170.06318.67
5.4.230.0200.05318.42
5.4.220.0230.07718.68
5.4.210.0330.07018.48
5.4.200.0130.05716.38
5.4.190.0270.05018.57
5.4.180.0130.06718.58
5.4.170.0270.05018.64
5.4.160.0230.06018.59
5.4.150.0400.05718.46
5.4.140.0170.08016.23
5.4.130.0100.06316.12
5.4.120.0100.07316.04
5.4.110.0330.05016.31
5.4.100.0330.04016.22
5.4.90.0070.08016.30
5.4.80.0170.05716.20
5.4.70.0300.04016.23
5.4.60.0200.07016.23
5.4.50.0170.05016.12
5.4.40.0230.04716.03
5.4.30.0200.05016.25
5.4.20.0100.06016.21
5.4.10.0230.04716.30
5.4.00.0270.04015.75
5.3.290.0230.05014.67
5.3.280.0200.05314.68
5.3.270.0200.05314.61
5.3.260.0100.06314.51
5.3.250.0200.05014.57
5.3.240.0130.06014.49
5.3.230.0200.05314.59
5.3.220.0270.06014.54
5.3.210.0100.06314.49
5.3.200.0130.05714.64
5.3.190.0170.05714.54
5.3.180.0200.05714.64
5.3.170.0300.04014.55
5.3.160.0170.06714.55
5.3.150.0200.05014.59
5.3.140.0170.05314.58
5.3.130.0200.06014.54
5.3.120.0200.05014.61
5.3.110.0270.05314.47
5.3.100.0100.05714.01
5.3.90.0230.04714.07
5.3.80.0170.05013.96
5.3.70.0130.05313.99
5.3.60.0270.04313.98
5.3.50.0300.04013.92
5.3.40.0170.06013.93
5.3.30.0230.06313.94
5.3.20.0170.05713.75
5.3.10.0200.05013.74
5.3.00.0170.05013.61
5.2.170.0170.04011.27
5.2.160.0100.04711.09
5.2.150.0170.05011.26
5.2.140.0130.05311.17
5.2.130.0170.05011.05
5.2.120.0230.03711.14
5.2.110.0270.03011.07
5.2.100.0200.03711.02
5.2.90.0130.05711.11
5.2.80.0130.05011.14
5.2.70.0230.04011.24
5.2.60.0170.05310.97
5.2.50.0200.03710.95
5.2.40.0130.04011.13
5.2.30.0130.04010.95
5.2.20.0130.04710.91
5.2.10.0100.05010.83
5.2.00.0130.04010.71
5.1.60.0130.03010.09
5.1.50.0130.0339.96
5.1.40.0100.03710.04
5.1.30.0100.05310.37
5.1.20.0200.05010.40
5.1.10.0030.04310.14
5.1.00.0100.03710.16
5.0.50.0100.0278.66
5.0.40.0070.0278.46
5.0.30.0100.0438.26
5.0.20.0070.0308.26
5.0.10.0170.0208.18
5.0.00.0030.0478.15
4.4.90.0070.0235.91
4.4.80.0030.0305.88
4.4.70.0070.0275.88
4.4.60.0130.0175.93
4.4.50.0070.0305.95
4.4.40.0070.0335.87
4.4.30.0100.0235.87
4.4.20.0070.0236.02
4.4.10.0070.0235.93
4.4.00.0000.0405.93
4.3.110.0100.0205.86
4.3.100.0030.0235.80
4.3.90.0070.0205.79
4.3.80.0170.0235.84
4.3.70.0070.0205.81
4.3.60.0070.0205.78
4.3.50.0000.0275.81
4.3.40.0030.0375.75
4.3.30.0030.0234.63
4.3.20.0000.0274.52
4.3.10.0000.0274.48
4.3.00.0000.0307.27

preferences:
41.48 ms | 401 KiB | 5 Q