3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 'zz'; $b = ord('z'); var_dump(++$a,ord('z'),chr(122),ord($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)
8.3.60.0100.00718.15
8.3.50.0120.00922.75
8.3.40.0080.00818.54
8.3.30.0090.00618.83
8.3.20.0050.00220.04
8.3.10.0040.00420.36
8.3.00.0030.00617.59
8.2.180.0070.00718.04
8.2.170.0100.01022.96
8.2.160.0070.00720.58
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0050.00326.16
8.2.120.0070.00019.54
8.2.110.0000.00820.99
8.2.100.0040.00717.72
8.2.90.0000.00719.05
8.2.80.0040.00417.97
8.2.70.0040.00417.38
8.2.60.0040.00417.80
8.2.50.0040.00418.07
8.2.40.0000.00818.03
8.2.30.0060.00317.93
8.2.20.0070.00317.59
8.2.10.0040.00418.04
8.2.00.0000.00817.58
8.1.280.0100.01025.92
8.1.270.0060.00320.65
8.1.260.0070.00026.35
8.1.250.0070.00028.09
8.1.240.0140.00422.55
8.1.230.0000.01120.85
8.1.220.0040.00418.77
8.1.210.0030.00618.83
8.1.200.0060.00317.35
8.1.190.0000.00717.39
8.1.180.0050.00318.10
8.1.170.0070.00018.75
8.1.160.0000.00818.71
8.1.150.0070.00018.88
8.1.140.0040.00417.43
8.1.130.0080.00017.72
8.1.120.0050.00317.43
8.1.110.0050.00317.26
8.1.100.0080.00017.22
8.1.90.0000.00717.41
8.1.80.0040.00417.32
8.1.70.0070.00017.31
8.1.60.0040.00417.51
8.1.50.0030.00517.33
8.1.40.0000.00817.41
8.1.30.0050.00517.61
8.1.20.0040.00417.60
8.1.10.0060.00317.32
8.1.00.0030.00617.25
8.0.300.0030.00319.89
8.0.290.0070.00016.63
8.0.280.0030.00318.30
8.0.270.0030.00317.22
8.0.260.0030.00317.13
8.0.250.0070.00016.87
8.0.240.0070.00016.75
8.0.230.0070.00016.87
8.0.220.0040.00416.89
8.0.210.0040.00416.80
8.0.200.0030.00316.93
8.0.190.0070.00016.80
8.0.180.0030.00516.88
8.0.170.0070.00016.93
8.0.160.0000.00716.79
8.0.150.0000.00716.65
8.0.140.0070.00016.70
8.0.130.0060.00013.21
8.0.120.0050.00316.74
8.0.110.0040.00416.71
8.0.100.0070.00016.79
8.0.90.0000.00716.83
8.0.80.0060.00916.86
8.0.70.0040.00416.66
8.0.60.0000.00716.77
8.0.50.0040.00416.84
8.0.30.0110.01116.92
8.0.20.0080.01117.40
8.0.10.0000.00816.93
8.0.00.0080.01116.76
7.4.330.0030.00315.02
7.4.320.0000.00616.48
7.4.300.0000.00616.42
7.4.290.0060.00016.44
7.4.280.0080.00316.48
7.4.270.0030.00316.42
7.4.260.0070.00016.43
7.4.250.0040.00416.38
7.4.240.0040.00316.46
7.4.230.0000.00616.41
7.4.220.0090.00916.35
7.4.210.0060.00916.54
7.4.200.0000.00716.59
7.4.160.0150.00016.28
7.4.150.0130.00317.40
7.4.140.0080.01017.86
7.4.130.0110.01116.38
7.4.120.0080.00916.46
7.4.110.0070.01116.57
7.4.100.0120.00616.38
7.4.90.0090.00916.29
7.4.80.0130.00316.23
7.4.70.0140.00516.27
7.4.60.0000.01616.27
7.4.50.0000.00416.19
7.4.40.0100.00616.34
7.4.30.0100.00716.47
7.4.00.0100.00614.73
7.3.330.0020.00212.95
7.3.320.0020.00213.10
7.3.310.0030.00316.18
7.3.300.0000.00616.09
7.3.290.0050.01216.21
7.3.280.0100.00916.16
7.3.270.0120.00617.40
7.3.260.0080.00816.46
7.3.250.0150.01516.21
7.3.240.0110.00616.58
7.3.230.0080.00816.39
7.3.210.0130.00316.23
7.3.200.0090.01219.39
7.3.190.0070.01116.61
7.3.180.0080.00816.21
7.3.170.0120.00416.27
7.3.160.0000.01616.18
7.3.120.0100.00814.69
7.3.110.0110.00514.88
7.3.100.0070.00514.70
7.3.90.0080.00614.73
7.3.80.0030.01114.64
7.3.70.0080.00414.80
7.3.60.0060.00914.79
7.3.50.0030.00614.67
7.3.40.0060.00814.64
7.3.30.0100.00314.75
7.3.20.0040.00816.55
7.3.10.0070.00416.75
7.3.00.0030.01116.49
7.2.330.0100.00716.32
7.2.320.0100.00716.59
7.2.310.0210.00016.57
7.2.300.0060.01016.63
7.2.290.0100.00916.65
7.2.250.0070.01014.96
7.2.240.0050.01414.75
7.2.230.0050.01214.57
7.2.220.0030.01014.82
7.2.210.0080.00615.02
7.2.200.0070.00714.87
7.2.190.0050.00614.95
7.2.180.0050.00714.75
7.2.170.0050.01214.91
7.2.60.0030.00916.66
7.2.50.0150.00416.55
7.1.330.0070.00815.70
7.1.320.0050.00915.81
7.1.310.0040.01015.92
7.1.300.0050.00815.75
7.1.290.0120.00515.73
7.1.280.0060.00915.63
7.1.270.0060.00815.76
7.1.260.0040.00715.67
7.1.200.0040.00815.94
7.1.70.0070.00717.22
7.1.60.0100.01319.34
7.1.50.0170.00316.63
7.1.00.0000.07722.31
7.0.200.0060.00316.81
7.0.140.0030.07322.04
7.0.60.0130.08019.84
7.0.50.0100.06317.86
7.0.40.0100.03720.12
7.0.30.0170.04020.04
7.0.20.0200.05720.17
7.0.10.0130.08020.17
7.0.00.0100.06020.00
5.6.280.0070.07021.07
5.6.210.0030.05720.70
5.6.200.0000.06018.23
5.6.190.0030.09020.39
5.6.180.0170.06720.39
5.6.170.0270.06020.51
5.6.160.0100.05720.48
5.6.150.0100.06018.22
5.6.140.0070.06318.11
5.6.130.0100.08318.21
5.6.120.0100.08320.98
5.6.110.0200.07720.96
5.6.100.0230.06020.97
5.6.90.0070.07321.07
5.6.80.0070.07020.36
5.5.350.0230.06720.41
5.5.340.0000.04317.96
5.5.330.0030.07320.46
5.5.320.0000.04320.13
5.5.310.0300.07720.30
5.5.300.0130.07317.91
5.5.290.0100.07718.02
5.5.280.0100.06320.86
5.5.270.0000.05020.85
5.5.260.0100.07320.76
5.5.250.0230.06720.57
5.5.240.0200.04020.03
5.4.450.0500.06019.48
5.4.440.0330.06319.49
5.4.430.0130.05319.45
5.4.420.0000.07019.63
5.4.410.0100.05319.04
5.4.400.0830.04718.79
5.4.390.0770.06318.52
5.4.380.1370.07018.63
5.4.370.1230.05718.71
5.4.360.1230.05718.58
5.4.350.0070.03311.97
5.4.340.0060.03411.96
5.4.320.0080.03412.45
5.4.310.0060.03712.45
5.4.300.0070.03512.45
5.4.290.0100.03412.45
5.4.280.0080.04212.34
5.4.270.0040.04012.34
5.4.260.0080.03612.35
5.4.250.0050.04312.35
5.4.240.0100.04212.34
5.4.230.0040.03912.34
5.4.220.0080.03412.34
5.4.210.0100.03512.34
5.4.200.0060.03812.34
5.4.190.0090.03312.34
5.4.180.0050.04212.33
5.4.170.0090.03812.34
5.4.160.0060.03912.34
5.4.150.0040.03912.34
5.4.140.0050.03912.02
5.4.130.0080.03812.01
5.4.120.0050.03911.97
5.4.110.0050.04111.96
5.4.100.0050.03811.97
5.4.90.0040.03811.96
5.4.80.0060.03711.96
5.4.70.0090.03311.96
5.4.60.0040.04311.96
5.4.50.0040.04411.96
5.4.40.0080.04311.95
5.4.30.0060.04511.95
5.4.20.0090.03411.95
5.4.10.0030.04011.95
5.4.00.0090.03411.43
5.3.290.0100.04112.80
5.3.280.0050.04112.71
5.3.270.0070.04112.73
5.3.260.0060.04012.72
5.3.250.0090.03612.71
5.3.240.0050.03912.72
5.3.230.0100.03712.71
5.3.220.0060.03912.68
5.3.210.0050.04012.68
5.3.200.0100.04212.68
5.3.190.0090.03712.68
5.3.180.0070.03612.67
5.3.170.0060.03612.67
5.3.160.0070.03612.68
5.3.150.0060.04012.68
5.3.140.0070.03612.66
5.3.130.0100.04412.66
5.3.120.0090.04312.66
5.3.110.0080.04012.66
5.3.100.0060.04412.12
5.3.90.0070.04112.08
5.3.80.0080.03712.08
5.3.70.0070.04512.08
5.3.60.0120.04412.06
5.3.50.0080.04212.00
5.3.40.0070.04512.00
5.3.30.0080.03511.95
5.3.20.0030.04011.72
5.3.10.0080.03311.69
5.3.00.0070.04111.68
5.2.170.0080.0339.18
5.2.160.0070.0279.18
5.2.150.0080.0319.18
5.2.140.0070.0329.18
5.2.130.0040.0319.14
5.2.120.0060.0299.13
5.2.110.0060.0329.14
5.2.100.0070.0279.14
5.2.90.0070.0319.14
5.2.80.0030.0319.13
5.2.70.0030.0329.14
5.2.60.0070.0309.09
5.2.50.0090.0349.05
5.2.40.0100.0259.04
5.2.30.0070.0379.01
5.2.20.0080.0328.99
5.2.10.0070.0298.91
5.2.00.0030.0348.78
5.1.60.0030.0258.06
5.1.50.0060.0328.05
5.1.40.0050.0278.04
5.1.30.0080.0338.39
5.1.20.0050.0318.41
5.1.10.0070.0308.13
5.1.00.0060.0278.14
5.0.50.0080.0216.61
5.0.40.0030.0206.47
5.0.30.0050.0296.29
5.0.20.0010.0226.25
5.0.10.0020.0226.24
5.0.00.0030.0346.23
4.4.90.0040.0164.78
4.4.80.0030.0174.75
4.4.70.0020.0164.76
4.4.60.0020.0174.75
4.4.50.0040.0144.77
4.4.40.0020.0264.71
4.4.30.0030.0154.76
4.4.20.0030.0204.84
4.4.10.0030.0164.85
4.4.00.0020.0264.76
4.3.110.0040.0154.67
4.3.100.0010.0194.67
4.3.90.0050.0134.63
4.3.80.0020.0264.58
4.3.70.0020.0174.63
4.3.60.0020.0154.63
4.3.50.0020.0174.63
4.3.40.0060.0264.54
4.3.30.0030.0153.29
4.3.20.0010.0173.27
4.3.10.0030.0143.23
4.3.00.0130.0176.93

preferences:
48.83 ms | 401 KiB | 5 Q