3v4l.org

run code in 300+ PHP versions simultaneously
<?php ob_start(); $time = microtime(1); $i = 0; while($i++ < 100000) echo'abcdef','abcdef','abcdef','abcdef','abcdef','abcdef','abcdef','abcdef'; ob_end_clean(); echo (microtime(1)-$time)." seconds for commas"; echo "\n"; ob_start(); $time = microtime(1); $i = 0; while($i++ < 100000) echo'abcdef'.'abcdef'.'abcdef'.'abcdef'.'abcdef'.'abcdef'.'abcdef'.'abcdef'; ob_end_clean(); echo (microtime(1)-$time)." seconds for dot";

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)
7.3.10.0270.04023.15
7.3.00.0300.04623.02
7.2.130.0220.04823.38
7.2.120.0240.04923.51
7.2.110.0260.05423.28
7.2.100.0300.04523.18
7.2.90.0330.04023.25
7.2.80.0290.04423.09
7.2.70.0350.04523.17
7.2.60.0290.04423.47
7.2.50.0330.05223.29
7.2.40.0150.05023.26
7.2.30.0360.04123.39
7.2.20.0380.03723.09
7.2.10.0360.04523.09
7.2.00.0230.03624.07
7.1.250.0240.04622.10
7.1.70.0000.03923.50
7.1.60.0430.02623.86
7.1.50.0100.06323.50
7.1.00.0070.11328.83
7.0.200.0070.02923.33
7.0.140.0100.10728.52
7.0.70.0070.09328.30
7.0.60.0000.12728.34
7.0.50.0070.11728.73
7.0.40.0100.08724.71
7.0.30.0030.12724.66
7.0.20.0070.12324.69
7.0.10.0170.11324.75
7.0.00.0070.10724.61
5.6.280.0130.14727.70
5.6.220.0030.12325.23
5.6.210.0030.14025.24
5.6.200.0170.12027.57
5.6.190.0130.16068.04
5.6.180.0030.14728.87
5.6.170.0300.13325.72
5.6.160.0070.14327.26
5.6.150.0100.15325.72
5.6.140.0130.15325.66
5.6.130.0130.08725.60
5.6.120.0100.13725.70
5.6.110.0030.14025.58
5.6.100.0130.13325.50
5.6.90.0100.14027.10
5.6.80.0130.14324.99
5.6.70.0000.09724.91
5.6.60.0100.12026.64
5.6.50.0030.15324.98
5.6.40.0130.14724.90
5.6.30.0100.14726.59
5.6.20.0130.13025.03
5.6.10.0070.15026.99
5.6.00.0100.13724.93
5.5.360.0070.09324.88
5.5.350.0130.13325.00
5.5.340.0100.12326.98
5.5.330.0100.13027.00
5.5.320.0100.09028.75
5.5.310.0170.13327.46
5.5.300.0100.12728.60
5.5.290.0170.13325.39
5.5.280.0100.14725.46
5.5.270.0070.15325.41
5.5.260.0170.13725.49
5.5.250.0170.15067.09
5.5.240.0100.13724.80
5.5.230.0000.15324.76
5.5.220.0030.12724.72
5.5.210.0070.15024.72
5.5.200.0000.15026.50
5.5.190.0170.12024.68
5.5.180.0030.15024.71
5.5.160.0000.14026.30
5.5.150.0070.10026.29
5.5.140.0070.14724.79
5.5.130.0200.09366.81
5.5.120.0030.09724.67
5.5.110.0030.10026.43
5.5.100.0000.08726.71
5.5.90.0070.14324.65
5.5.80.0030.08724.59
5.5.70.0070.08024.62
5.5.60.0100.09066.68
5.5.50.0170.05724.68
5.5.40.0130.09728.02
5.5.30.0000.08724.66
5.5.20.0030.11028.00
5.5.10.0030.07027.89
5.5.00.0070.07327.89
5.4.450.0000.10025.77
5.4.440.0030.16725.59
5.4.430.0100.14725.99
5.4.420.0130.13025.95
5.4.410.0100.08023.81
5.4.400.0100.14025.53
5.4.390.0130.10723.82
5.4.380.0070.13725.48
5.4.370.0130.14026.93
5.4.360.0100.08023.64
5.4.350.0130.13725.30
5.4.340.0070.09025.22
5.4.320.0070.13725.12
5.4.310.0070.13023.65
5.4.300.0030.15026.94
5.4.290.0000.14723.54
5.4.280.0070.08025.32
5.4.270.0100.08324.72
5.4.260.0030.11325.42
5.4.250.0030.08023.70
5.4.240.0070.07725.06
5.4.230.0000.08725.21
5.4.220.0000.09325.56
5.4.210.0000.07323.70
5.4.200.0030.08026.80
5.4.190.0030.08723.36
5.4.180.0000.09023.50
5.4.170.0030.08023.65
5.4.160.0030.07023.47
5.4.150.0000.08323.34
5.4.140.0030.07020.96
5.4.130.0030.08024.14
5.4.120.0000.07020.87
5.4.110.0070.08023.07
5.4.100.0030.07722.58
5.4.90.0000.08021.04
5.4.80.0030.06723.06
5.4.70.0030.07723.04
5.4.60.0000.15320.98
5.4.50.0070.08320.93
5.4.40.0070.10320.95
5.4.30.0000.13722.35
5.4.20.0070.11721.01
5.4.10.0000.08322.51
5.4.00.0070.12722.28
5.3.290.0000.11319.38
5.3.280.0000.10719.33
5.3.270.0000.08021.20
5.3.260.0070.05719.36
5.3.250.0030.07020.68
5.3.240.0000.10020.90
5.3.230.0100.06319.30
5.3.220.0000.13019.25
5.3.210.0130.08061.45
5.3.200.0030.08020.52
5.3.190.0100.07720.66
5.3.180.0030.07719.20
5.3.170.0130.06021.25
5.3.160.0030.11319.35
5.3.150.0030.10320.83
5.3.140.0100.09019.27
5.3.130.0070.12321.05
5.3.120.0130.12719.22
5.3.110.0070.07719.19
5.3.100.0070.12719.91
5.3.90.0070.12718.69
5.3.80.0100.07018.62
5.3.70.0070.12720.31
5.3.60.0000.13020.39
5.3.50.0000.07318.70
5.3.40.0070.11018.49
5.3.30.0030.10720.32
5.3.20.0100.09718.39
5.3.10.0030.13021.31
5.3.00.0070.12320.19
5.2.170.0070.12317.57
5.2.160.0030.11717.15
5.2.150.0070.08317.81
5.2.140.0230.12058.32
5.2.130.0130.11317.35
5.2.120.0070.12017.66
5.2.110.0030.10015.71
5.2.100.0070.11715.83
5.2.90.0200.09717.69
5.2.80.0070.11319.05
5.2.70.0130.09058.44
5.2.60.0070.11717.62
5.2.50.0030.13017.36
5.2.40.0170.09315.73
5.2.30.0100.06017.36
5.2.20.0000.05717.71
5.2.10.0100.11718.77
5.2.00.0130.08316.80
5.1.60.0070.10714.63
5.1.50.0100.12014.57
5.1.40.0130.12016.20
5.1.30.0030.09316.52
5.1.20.0170.11718.38
5.1.10.0030.12014.71
5.1.00.0000.10014.65
5.0.50.0070.14312.96
5.0.40.0270.13014.80
5.0.30.0100.10012.85
5.0.20.0030.11712.76
5.0.10.0070.12312.83
5.0.00.0070.14312.82
4.4.90.0130.11310.54
4.4.80.0130.11710.53
4.4.70.0030.07012.41
4.4.60.0070.12310.42
4.4.50.0230.12385.99
4.4.40.0030.14010.48
4.4.30.0130.13310.43
4.4.20.0000.11010.51
4.4.10.0000.13311.96
4.4.00.0000.10310.53
4.3.110.0000.12312.41
4.3.100.0030.13710.41
4.3.90.0030.11710.34
4.3.80.0030.13311.95
4.3.70.0030.09010.38
4.3.60.0070.11710.36
4.3.50.0100.13012.00
4.3.40.0000.13710.34
4.3.30.0100.11710.34
4.3.20.0030.13010.34
4.3.10.0030.13710.81
4.3.00.0070.13310.45

preferences:
32.09 ms | 401 KiB | 5 Q