3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = 'abc123'; $y = "abc123"; $z = ''; var_dump( empty($z) );

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)
8.3.60.0090.00616.50
8.3.50.0080.01021.97
8.3.40.0090.00618.59
8.3.30.0070.00718.73
8.3.20.0040.00420.24
8.3.10.0040.00423.61
8.3.00.0000.01017.50
8.2.180.0130.00716.63
8.2.170.0110.00422.96
8.2.160.0100.00320.39
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0000.00726.16
8.2.120.0070.00022.20
8.2.110.0060.00322.07
8.2.100.0080.00417.59
8.2.90.0050.00318.80
8.2.80.0040.00417.97
8.2.70.0040.00417.25
8.2.60.0030.00517.91
8.2.50.0050.00318.07
8.2.40.0040.00418.09
8.2.30.0000.00718.10
8.2.20.0000.00717.63
8.2.10.0030.00617.60
8.2.00.0040.00417.54
8.1.280.0040.01125.92
8.1.270.0030.00521.91
8.1.260.0040.00426.35
8.1.250.0000.00828.09
8.1.240.0080.00023.82
8.1.230.0060.00619.16
8.1.220.0030.00617.74
8.1.210.0000.00818.77
8.1.200.0030.00617.22
8.1.190.0080.00317.52
8.1.180.0040.00418.10
8.1.170.0030.00618.42
8.1.160.0030.00621.93
8.1.150.0040.00418.49
8.1.140.0030.00517.43
8.1.130.0000.00617.82
8.1.120.0070.00017.30
8.1.110.0000.00717.44
8.1.100.0030.00317.24
8.1.90.0070.00017.30
8.1.80.0000.00717.41
8.1.70.0000.00817.21
8.1.60.0040.00717.40
8.1.50.0040.00417.39
8.1.40.0000.00717.34
8.1.30.0080.00017.56
8.1.20.0050.00217.47
8.1.10.0000.00817.46
8.1.00.0000.00717.39
8.0.300.0000.00718.77
8.0.290.0040.00417.16
8.0.280.0000.00818.29
8.0.270.0000.00717.12
8.0.260.0040.00416.62
8.0.250.0030.00316.89
8.0.240.0000.00716.89
8.0.230.0000.00816.80
8.0.220.0030.00316.71
8.0.210.0060.00316.80
8.0.200.0030.00316.85
8.0.190.0030.00316.91
8.0.180.0030.00316.73
8.0.170.0040.00416.91
8.0.160.0040.00416.77
8.0.150.0000.00716.68
8.0.140.0000.00716.67
8.0.130.0040.00413.18
8.0.120.0040.00416.82
8.0.110.0040.00416.81
8.0.100.0000.00716.80
8.0.90.0000.00716.79
8.0.80.0130.00316.81
8.0.70.0000.00716.63
8.0.60.0040.00316.65
8.0.50.0050.00316.70
8.0.30.0030.01517.00
8.0.20.0120.00617.40
8.0.10.0060.00316.93
8.0.00.0060.01516.54
7.4.330.0050.00015.09
7.4.320.0050.00216.45
7.4.300.0030.00316.42
7.4.290.0000.00716.53
7.4.280.0030.00316.43
7.4.270.0030.00316.58
7.4.260.0000.00716.56
7.4.250.0000.00716.52
7.4.240.0000.00716.44
7.4.230.0050.00216.62
7.4.220.0060.01116.60
7.4.210.0070.00716.50
7.4.200.0020.00516.62
7.4.190.0030.00316.53
7.4.160.0120.00316.51
7.4.150.0100.00517.40
7.4.140.0050.01717.86
7.4.130.0020.01416.40
7.4.120.0080.01116.48
7.4.110.0090.00816.45
7.4.100.0080.01416.49
7.4.90.0060.01116.41
7.4.80.0130.00319.39
7.4.70.0060.00916.33
7.4.60.0090.01216.42
7.4.50.0000.00516.37
7.4.40.0070.01022.77
7.4.30.0090.01216.60
7.4.00.0030.01115.05
7.3.330.0050.00013.06
7.3.320.0050.00013.10
7.3.310.0000.00716.19
7.3.300.0030.00316.03
7.3.290.0090.00616.09
7.3.280.0100.00816.15
7.3.270.0130.00717.40
7.3.260.0060.01016.34
7.3.250.0170.00616.46
7.3.240.0070.01016.29
7.3.230.0040.01516.39
7.3.210.0100.00716.22
7.3.200.0100.01019.39
7.3.190.0130.00316.36
7.3.180.0120.00316.50
7.3.170.0090.00616.38
7.3.160.0080.00816.28
7.3.120.0090.00314.46
7.2.330.0120.00916.55
7.2.320.0090.00816.25
7.2.310.0090.00916.20
7.2.300.0090.01316.53
7.2.290.0040.01216.28
7.1.70.0000.00716.74
7.1.60.0140.01019.31
7.1.50.0260.01634.65
7.1.00.0030.07022.57
7.0.200.0080.00016.72
7.0.140.0030.07321.95
7.0.100.0030.04019.94
7.0.90.0100.05319.96
7.0.80.0230.07720.12
7.0.70.0070.03719.98
7.0.60.0030.04720.01
7.0.50.0030.08320.15
7.0.40.0100.04320.09
7.0.30.0000.05020.11
7.0.20.0030.04320.00
7.0.10.0070.05020.07
7.0.00.0000.07320.07
5.6.280.0100.06320.98
5.6.250.0030.04020.80
5.6.240.0000.08020.69
5.6.230.0170.03320.59
5.6.220.0100.09020.64
5.6.210.0030.04020.76
5.6.200.0030.05020.95
5.6.190.0100.08021.10
5.6.180.0070.05020.91
5.6.170.0070.08020.95
5.6.160.0070.04721.02
5.6.150.0070.04320.95
5.6.140.0030.07720.95
5.6.130.0070.07321.02
5.6.120.0130.03720.93
5.6.110.0100.07721.15
5.6.100.0030.05020.98
5.6.90.0200.04320.91
5.6.80.0070.08320.55
5.6.70.0030.05720.40
5.6.60.0070.06020.45
5.6.50.0130.04720.46
5.6.40.0070.03720.51
5.6.30.0100.03320.45
5.6.20.0070.07720.45
5.6.10.0100.08020.42
5.6.00.0070.08020.35
5.5.380.0070.05020.36
5.5.370.0100.04320.56
5.5.360.0100.03720.34
5.5.350.0030.05720.41
5.5.340.0030.07720.93
5.5.330.0030.05020.86
5.5.320.0000.06020.63
5.5.310.0070.04020.91
5.5.300.0030.05020.78
5.5.290.0130.07320.86
5.5.280.0070.05020.80
5.5.270.0000.08020.75
5.5.260.0070.06720.85
5.5.250.0070.04020.56
5.5.240.0130.07020.29
5.5.230.0130.07020.29
5.5.220.0030.05720.14
5.5.210.0070.06720.14
5.5.200.0100.03720.17
5.5.190.0100.06020.16
5.5.180.0130.07720.28
5.5.160.0070.03320.14
5.5.150.0070.03320.22
5.5.140.0070.03719.98
5.5.130.0030.07320.10
5.5.120.0000.04020.27
5.5.110.0000.04020.16
5.5.100.0130.07019.97
5.5.90.0030.06720.13
5.5.80.0070.07720.14
5.5.70.0030.05020.14
5.5.60.0070.03720.02
5.5.50.0070.05020.09
5.5.40.0030.05019.92
5.5.30.0000.06320.12
5.5.20.0070.05320.07
5.5.10.0130.06020.04
5.5.00.0130.06019.96
5.4.450.0100.03319.11
5.4.440.0000.06319.52
5.4.430.0070.07719.13
5.4.420.0000.05719.35
5.4.410.0130.07319.34
5.4.400.0070.04718.79
5.4.390.0030.04018.78
5.4.380.0070.08019.10
5.4.370.0000.06318.79
5.4.360.0100.04319.11
5.4.350.0030.04019.12
5.4.340.0100.06719.14
5.4.320.0000.04019.03
5.4.310.0070.03719.09
5.4.300.0030.03718.81
5.4.290.0030.06018.97
5.4.280.0000.05019.07
5.4.270.0030.03718.97
5.4.260.0100.03018.99
5.4.250.0030.06319.11
5.4.240.0070.03718.93
5.4.230.0000.06018.94
5.4.220.0070.06719.12
5.4.210.0100.06019.02
5.4.200.0070.06019.04
5.4.190.0030.05019.13
5.4.180.0070.06318.80
5.4.170.0200.05718.89
5.4.160.0070.03718.96
5.4.150.0100.07718.96
5.4.140.0070.07716.30
5.4.130.0030.03716.00
5.4.120.0000.04716.36
5.4.110.0070.04316.23
5.4.100.0130.06316.23
5.4.90.0130.06716.27
5.4.80.0070.03316.32
5.4.70.0130.06316.24
5.4.60.0030.04316.41
5.4.50.0130.06316.40
5.4.40.0030.07316.35
5.4.30.0130.05016.18
5.4.20.0070.04016.41
5.4.10.0130.03716.41
5.4.00.0100.05015.79
5.3.290.0030.04014.59
5.3.280.0000.07714.41
5.3.270.0100.06714.46
5.3.260.0000.04314.42
5.3.250.0030.04314.60
5.3.240.0070.04014.59
5.3.230.0030.08014.59
5.3.220.0100.03014.50
5.3.210.0030.03714.55
5.3.200.0030.03314.43
5.3.190.0070.06714.57
5.3.180.0030.04314.54
5.3.170.0100.03314.54
5.3.160.0070.07714.52
5.3.150.0070.04714.55
5.3.140.0100.06314.54
5.3.130.0070.04314.40
5.3.120.0130.07014.50
5.3.110.0170.03714.48
5.3.100.0170.06713.87
5.3.90.0070.05013.88
5.3.80.0030.04314.00
5.3.70.0000.04013.97
5.3.60.0030.04313.98
5.3.50.0100.03313.89
5.3.40.0070.07313.89
5.3.30.0000.03713.75
5.3.20.0070.03313.68
5.3.10.0070.05713.42
5.3.00.0030.05713.58
5.2.170.0030.03012.32
5.2.160.0000.03712.32
5.2.150.0030.06712.32
5.2.140.0000.06712.32
5.2.130.0030.04012.32
5.2.120.0130.02312.32
5.2.110.0000.03012.32
5.2.100.0030.02712.32
5.2.90.0030.02712.32
5.2.80.0100.02712.32
5.2.70.0000.05012.32
5.2.60.0130.01712.32
5.2.50.0070.02712.32
5.2.40.0000.04712.32
5.2.30.0070.05012.32
5.2.20.0030.02712.32
5.2.10.0030.02712.32
5.2.00.0030.03312.32
5.1.60.0070.02012.32
5.1.50.0000.03012.32
5.1.40.0000.02712.32
5.1.30.0100.03312.32
5.1.20.0030.06712.32
5.1.10.0000.05312.32
5.1.00.0100.05312.32
5.0.50.0070.03712.32
5.0.40.0070.02012.32
5.0.30.0030.05012.32
5.0.20.0000.02312.32
5.0.10.0100.02712.32
5.0.00.0030.04712.32
4.4.90.0000.03012.32
4.4.80.0070.01312.32
4.4.70.0000.02012.32
4.4.60.0000.01712.32
4.4.50.0000.02712.32
4.4.40.0030.02312.32
4.4.30.0000.02712.32
4.4.20.0000.03712.32
4.4.10.0030.01712.32
4.4.00.0070.05012.32
4.3.110.0070.02712.32
4.3.100.0030.02312.32
4.3.90.0070.02712.32
4.3.80.0000.03012.32
4.3.70.0000.02012.32
4.3.60.0000.02012.32
4.3.50.0100.03012.32
4.3.40.0000.05712.32
4.3.30.0030.02312.32
4.3.20.0070.03012.32
4.3.10.0070.04012.32
4.3.00.0030.03012.32

preferences:
42.92 ms | 401 KiB | 5 Q