3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str1 = 'meh'; $str2 = 'waff'; echo $str1.$str2;

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)
8.3.60.0120.00318.07
8.3.50.0100.00316.28
8.3.40.0110.00418.56
8.3.30.0070.00718.54
8.3.20.0040.00420.34
8.3.10.0030.00521.78
8.3.00.0050.00319.01
8.2.180.0120.00618.29
8.2.170.0110.01122.96
8.2.160.0130.00020.52
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0000.00720.98
8.2.120.0040.00426.35
8.2.110.0030.00620.35
8.2.100.0090.00317.72
8.2.90.0050.00317.69
8.2.80.0040.00419.40
8.2.70.0040.00417.93
8.2.60.0040.00417.93
8.2.50.0050.00318.22
8.2.40.0060.00320.63
8.2.30.0000.00719.54
8.2.20.0000.00818.03
8.2.10.0040.00417.92
8.2.00.0040.00418.28
8.1.280.0120.00425.92
8.1.270.0000.00820.00
8.1.260.0040.00426.35
8.1.250.0050.00328.09
8.1.240.0050.00520.80
8.1.230.0040.00820.87
8.1.220.0040.00417.74
8.1.210.0030.00518.77
8.1.200.0000.00817.36
8.1.190.0000.00817.23
8.1.180.0060.00318.10
8.1.170.0090.00018.39
8.1.160.0030.00318.85
8.1.150.0000.00720.16
8.1.140.0040.00418.94
8.1.130.0030.00319.04
8.1.120.0040.00417.29
8.1.110.0030.00617.30
8.1.100.0030.00617.38
8.1.90.0000.00817.29
8.1.80.0030.00317.21
8.1.70.0090.00017.36
8.1.60.0000.00817.54
8.1.50.0000.00717.32
8.1.40.0040.00417.32
8.1.30.0040.00417.39
8.1.20.0070.00017.53
8.1.10.0030.00617.46
8.1.00.0000.00717.43
8.0.300.0000.00820.06
8.0.290.0040.00416.75
8.0.280.0030.00318.43
8.0.270.0040.00417.15
8.0.260.0000.00617.30
8.0.250.0000.00716.98
8.0.240.0050.00316.93
8.0.230.0000.00917.00
8.0.220.0000.00816.81
8.0.210.0030.00316.95
8.0.200.0030.00316.91
8.0.190.0050.00316.93
8.0.180.0000.00716.83
8.0.170.0100.00016.79
8.0.160.0000.00816.83
8.0.150.0050.00316.86
8.0.140.0030.00316.85
8.0.130.0000.00613.38
8.0.120.0080.00016.87
8.0.110.0040.00316.90
8.0.100.0020.00516.81
8.0.90.0060.00316.83
8.0.80.0130.00716.81
8.0.70.0040.00416.75
8.0.60.0080.00016.82
8.0.50.0080.00016.82
8.0.30.0090.01017.02
8.0.20.0100.00917.40
8.0.10.0040.00416.76
8.0.00.0080.01116.61
7.4.330.0040.00015.55
7.4.320.0000.00616.55
7.4.300.0040.00416.48
7.4.290.0070.00016.40
7.4.280.0000.00816.32
7.4.270.0040.00416.43
7.4.260.0030.00316.50
7.4.250.0030.00316.38
7.4.240.0030.00316.40
7.4.230.0030.00316.50
7.4.220.0040.00416.54
7.4.210.0090.00516.51
7.4.200.0030.00316.64
7.4.160.0090.00816.43
7.4.150.0090.00917.40
7.4.140.0090.00917.86
7.4.130.0160.00916.40
7.4.120.0100.01016.46
7.4.110.0130.01016.54
7.4.100.0130.00316.63
7.4.90.0060.01116.30
7.4.80.0130.00319.39
7.4.70.0090.01216.39
7.4.60.0060.01016.38
7.4.50.0030.00916.32
7.4.40.0090.00616.39
7.4.00.0070.01214.72
7.3.330.0020.00213.05
7.3.320.0000.00513.12
7.3.310.0030.00316.23
7.3.300.0080.00016.21
7.3.290.0030.01216.18
7.3.280.0050.00916.19
7.3.270.0140.00317.40
7.3.260.0130.00416.28
7.3.250.0100.00716.31
7.3.240.0090.01016.35
7.3.230.0060.01216.13
7.3.210.0030.01316.46
7.3.200.0100.01016.36
7.3.190.0060.01016.33
7.3.180.0090.00616.22
7.3.170.0060.00916.19
7.3.160.0090.00616.34
7.3.120.0070.01114.71
7.3.110.0070.01114.71
7.3.100.0030.01414.94
7.3.90.0080.00414.63
7.3.80.0000.01214.70
7.3.70.0000.00914.63
7.3.60.0060.00614.66
7.3.50.0060.00914.63
7.3.40.0070.01014.70
7.3.30.0070.00714.61
7.3.20.0030.01216.73
7.3.10.0030.00816.57
7.3.00.0040.01416.49
7.2.330.0070.01216.37
7.2.320.0070.01116.55
7.2.310.0030.01416.29
7.2.300.0150.00916.26
7.2.290.0080.01116.69
7.2.250.0070.01315.10
7.2.240.0100.01015.18
7.2.230.0060.00914.89
7.2.220.0060.00614.95
7.2.210.0070.01015.23
7.2.200.0040.01115.00
7.2.190.0030.01015.11
7.2.180.0130.00614.87
7.2.170.0110.00714.81
7.2.60.0100.00316.50
7.2.10.0320.01017.63
7.2.00.0300.00317.75
7.1.330.0040.01115.50
7.1.320.0130.00015.81
7.1.310.0030.01315.68
7.1.300.0090.00615.28
7.1.290.0110.00315.83
7.1.280.0070.00715.54
7.1.270.0040.00415.37
7.1.260.0070.00415.75
7.1.200.0080.00315.44
7.1.130.0230.00616.26
7.1.120.0270.00316.40
7.1.110.0220.00816.18
7.1.100.0260.00715.98
7.1.90.0170.01015.72
7.1.80.0230.00316.17
7.1.70.0190.00815.13
7.1.60.0470.01433.35
7.1.50.0360.00932.84
7.1.40.0710.00332.46
7.1.30.0350.01432.72
7.1.20.0470.01132.59
7.1.10.0260.01014.50
7.1.00.0160.01014.54

preferences:
65.91 ms | 401 KiB | 5 Q