3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = ''; for ($i = 0; $i < 1000; $i++){ $str += "a"; } echo $str;

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)
8.3.60.0070.00716.88
8.3.50.0100.01021.99
8.3.40.0040.01118.77
8.3.30.0070.00718.59
8.3.20.0040.00420.20
8.3.10.0080.00023.66
8.3.00.0040.00420.04
8.2.180.0070.01418.54
8.2.170.0110.00322.96
8.2.160.0030.01020.36
8.2.150.0000.00824.18
8.2.140.0000.00824.66
8.2.130.0030.00619.18
8.2.120.0050.00326.35
8.2.110.0090.00021.08
8.2.100.0060.00617.97
8.2.90.0050.00317.79
8.2.80.0080.00017.97
8.2.70.0000.00917.75
8.2.60.0030.00717.80
8.2.50.0030.00618.07
8.2.40.0080.00021.25
8.2.30.0000.00720.73
8.2.20.0070.00017.73
8.2.10.0040.00418.06
8.2.00.0030.00518.05
8.1.280.0130.01025.92
8.1.270.0000.00918.74
8.1.260.0070.00028.09
8.1.250.0040.00428.09
8.1.240.0030.00622.05
8.1.230.0040.00821.02
8.1.220.0040.00417.75
8.1.210.0040.00418.77
8.1.200.0100.00016.99
8.1.190.0060.00617.10
8.1.180.0090.00018.10
8.1.170.0030.00518.59
8.1.160.0080.00020.75
8.1.150.0000.00818.88
8.1.140.0030.00519.43
8.1.130.0000.00817.63
8.1.120.0000.00817.36
8.1.110.0050.00217.41
8.1.100.0040.00417.43
8.1.90.0030.00517.41
8.1.80.0040.00417.42
8.1.70.0040.00417.27
8.1.60.0040.00417.41
8.1.50.0030.00617.54
8.1.40.0080.00017.39
8.1.30.0000.00917.57
8.1.20.0060.00317.54
8.1.10.0040.00417.60
8.1.00.0000.00717.49
8.0.300.0040.00420.08
8.0.290.0000.00716.63
8.0.280.0000.00718.38
8.0.270.0030.00317.18
8.0.260.0000.00717.08
8.0.250.0060.00016.96
8.0.240.0000.00816.93
8.0.230.0060.00316.99
8.0.220.0070.00016.86
8.0.210.0000.00816.90
8.0.200.0030.00316.84
8.0.190.0000.00716.86
8.0.180.0000.00716.93
8.0.170.0000.00816.88
8.0.160.0030.00516.86
8.0.150.0000.00716.94
8.0.140.0000.01016.83
8.0.130.0000.00513.40
8.0.120.0000.00916.78
8.0.110.0000.00816.95
8.0.100.0060.00316.98
8.0.90.0040.00416.89
8.0.80.0090.00916.94
8.0.70.0080.00016.85
8.0.60.0040.00417.02
8.0.50.0040.00416.79
8.0.30.0070.01116.91
8.0.20.0080.01017.41
8.0.10.0030.00316.91
8.0.00.0080.00916.64
7.4.330.0060.00016.66
7.4.320.0000.00816.30
7.4.300.0030.00316.38
7.4.290.0050.00316.29
7.4.280.0030.00616.44
7.4.270.0030.00616.40
7.4.260.0000.00716.29
7.4.250.0000.00716.38
7.4.240.0050.00216.32
7.4.230.0030.00316.30
7.4.220.0060.01216.27
7.4.210.0130.00316.44
7.4.200.0000.00716.33
7.4.160.0130.00716.34
7.4.150.0070.01717.40
7.4.140.0150.01417.86
7.4.130.0140.00816.24
7.4.120.0150.00916.37
7.4.110.0180.00616.50
7.4.100.0080.01216.34
7.4.90.0160.00516.36
7.4.80.0180.00919.39
7.4.70.0090.01216.30
7.4.60.0030.01416.39
7.4.50.0090.00616.38
7.4.40.0100.01016.27
7.4.30.0070.02016.24
7.4.00.0110.00715.01
7.3.330.0110.00013.26
7.3.320.0030.00313.26
7.3.310.0030.00316.38
7.3.300.0030.00316.26
7.3.290.0070.00816.22
7.3.280.0100.00716.21
7.3.270.0240.00317.40
7.3.260.0130.00816.21
7.3.240.0180.00316.24
7.3.230.0060.01416.39
7.3.210.0090.01816.21
7.3.200.0110.01916.61
7.3.190.0090.01216.14
7.3.180.0160.01016.46
7.3.170.0100.01016.58
7.3.160.0130.00316.36
7.2.330.0120.00816.38
7.2.320.0100.01716.38
7.2.310.0090.01116.52
7.2.300.0000.01916.27
7.2.290.0150.00616.32
7.2.60.0040.01116.56
7.2.00.0030.01219.24
7.1.200.0200.00015.56
7.1.100.0100.00717.74
7.1.70.0000.00716.98
7.1.60.0090.01519.13
7.1.50.0090.01216.98
7.1.00.0100.07022.36
7.0.200.0030.00616.43
7.0.60.0070.08720.00
7.0.50.0100.05317.85
7.0.40.0030.06319.96
7.0.30.0230.04320.02
7.0.20.0300.08020.02
7.0.10.0100.03720.00
7.0.00.0030.04720.34
5.6.210.0100.08020.52
5.6.200.0000.08318.12
5.6.190.0030.07720.67
5.6.180.0000.08720.33
5.6.170.0300.07320.48
5.6.160.0030.08720.52
5.6.150.0070.06318.08
5.6.140.0100.07718.22
5.6.130.0130.08018.16
5.6.120.0070.05721.09
5.6.110.0130.07320.99
5.6.100.0100.08020.95
5.6.90.0100.06720.86
5.6.80.0130.05320.38
5.5.350.3070.03720.38
5.5.340.0070.04317.92
5.5.330.0100.08020.56
5.5.320.0370.06720.16
5.5.310.0130.04320.18
5.5.300.0070.07718.00
5.5.290.0100.07017.92
5.5.280.0070.08320.79
5.5.270.0100.04720.79
5.5.260.0100.05720.88
5.5.250.0130.07320.68
5.5.240.0230.07020.25

preferences:
55.92 ms | 401 KiB | 5 Q