3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump('1Acarré' + '2Ab');

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)
8.4.10.0030.00719.52
8.3.140.0050.00318.90
8.3.130.0280.00316.75
8.3.120.0240.00717.47
8.3.110.0260.00817.50
8.3.100.0290.00525.85
8.3.90.0250.00420.32
8.3.80.0260.00718.99
8.3.70.0240.01018.98
8.3.60.0270.01020.72
8.3.50.0230.00720.07
8.3.40.0260.00720.31
8.3.30.0190.00820.25
8.3.20.0170.00822.39
8.3.10.0140.00822.78
8.3.00.0140.00822.15
8.2.250.0160.00816.76
8.2.240.0160.00716.55
8.2.230.0190.00717.53
8.2.220.0190.00619.98
8.2.210.0180.00720.25
8.2.200.0200.00719.37
8.2.190.0280.00619.12
8.2.180.0270.00720.70
8.2.170.0310.00720.43
8.2.160.0280.00721.08
8.2.150.0220.00721.81
8.2.140.0220.00422.13
8.2.130.0180.00822.89
8.2.120.0180.00621.82
8.2.110.0170.00721.48
8.2.100.0190.00720.33
8.2.90.0180.00620.56
8.2.80.0190.00720.74
8.2.70.0160.00540.68
8.2.60.0200.00528.31
8.2.50.0170.00626.89
8.2.40.0160.00525.30
8.2.30.0170.00525.54
8.2.20.0150.00625.54
8.2.10.0150.00624.75
8.2.00.0130.00624.44
8.1.300.0200.00616.55
8.1.290.0230.00823.96
8.1.280.0280.00720.00
8.1.270.0190.00822.34
8.1.260.0180.00623.14
8.1.250.0170.00822.68
8.1.240.0150.00821.34
8.1.230.0160.00620.82
8.1.220.0190.00720.68
8.1.210.0190.00720.68
8.1.200.0180.00629.80
8.1.190.0180.00528.09
8.1.180.0170.00526.42
8.1.170.0150.00626.19
8.1.160.0140.00625.40
8.1.150.0150.00625.51
8.1.140.0140.00625.07
8.1.130.0150.00524.60
8.1.120.0140.00523.84
8.1.110.0140.00523.21
8.1.100.0130.00522.47
8.1.90.0120.00622.28
8.1.80.0130.00521.89
8.1.70.0120.00621.53
8.1.60.0130.00621.71
8.1.50.0140.00521.40
8.1.40.0140.00521.02
8.1.30.0140.00520.84
8.1.20.0130.00620.60
8.1.10.0130.00620.14
8.1.00.0140.00520.37
8.0.300.0180.00620.38
8.0.290.0190.00530.75
8.0.280.0170.00524.84
8.0.270.0150.00524.92
8.0.260.0150.00524.26
8.0.250.0140.00523.45
8.0.240.0130.00522.87
8.0.230.0140.00522.24
8.0.220.0130.00521.99
8.0.210.0130.00621.78
8.0.200.0140.00421.55
8.0.190.0140.00521.46
8.0.180.0130.00521.09
8.0.170.0140.00520.81
8.0.160.0130.00520.56
8.0.150.0130.00520.22
8.0.140.0130.00519.99
8.0.130.0120.00519.63
8.0.120.0130.00519.43
8.0.110.0110.00519.30
8.0.100.0110.00519.02
8.0.90.0110.00418.83
8.0.80.0110.00519.03
8.0.70.0110.00519.04
8.0.60.0110.00519.07
8.0.50.0110.00519.05
8.0.30.0110.00519.07
8.0.20.0110.00519.13
8.0.10.0110.00519.12
8.0.00.0090.00519.26
7.4.330.0120.00522.57
7.4.320.0150.00522.29
7.4.300.0120.00520.76
7.4.290.0140.00520.83
7.4.280.0140.00620.22
7.4.270.0130.00519.45
7.4.260.0130.00520.09
7.4.250.0140.00519.15
7.4.240.0140.00519.02
7.4.230.0120.00518.79
7.4.220.0110.00518.73
7.4.210.0120.00418.73
7.4.200.0110.00518.75
7.4.190.0120.00418.81
7.4.180.0110.00518.81
7.4.160.0110.00518.79
7.4.150.0120.00418.72
7.4.140.0110.00518.71
7.4.130.0110.00518.63
7.4.120.0110.00518.65
7.4.110.0110.00518.65
7.4.100.0110.00418.74
7.4.90.0110.00518.69
7.4.80.0110.00518.64
7.4.70.0120.00418.64
7.4.60.0110.00518.68
7.4.50.0110.00518.59
7.4.40.0110.00418.57
7.4.30.0110.00518.53
7.4.20.0110.00518.64
7.4.10.0110.00518.63
7.4.00.0110.00418.67
7.3.330.0140.00520.13
7.3.320.0150.00519.06
7.3.310.0130.00518.85
7.3.300.0130.00518.61
7.3.290.0130.00418.56
7.3.280.0130.00418.61
7.3.270.0120.00518.61
7.3.260.0130.00418.58
7.3.250.0130.00518.61
7.3.240.0130.00518.58
7.3.230.0130.00518.59
7.3.220.0130.00418.54
7.3.210.0130.00418.55
7.3.200.0130.00418.54
7.3.190.0130.00518.55
7.3.180.0130.00518.54
7.3.170.0130.00418.56
7.3.160.0130.00418.55
7.3.150.0120.00418.54
7.3.140.0120.00518.54
7.3.130.0120.00518.55
7.3.120.0120.00418.55
7.3.110.0120.00518.50
7.3.100.0130.00418.50
7.3.90.0130.00418.75
7.3.80.0130.00418.54
7.3.70.0120.00418.59
7.3.60.0130.00418.62
7.3.50.0130.00418.64
7.3.40.0120.00418.64
7.3.30.0120.00518.63
7.3.20.0130.00519.63
7.3.10.0130.00419.58
7.3.00.0130.00519.57

preferences:
58.7 ms | 403 KiB | 5 Q