3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo mb_convert_encoding ( 'äìè', 'UTF-8', 'ISO-8859-1' );

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)
8.3.60.0060.00918.16
8.3.50.0120.00616.26
8.3.40.0110.00418.56
8.3.30.0160.00018.46
8.3.20.0000.00720.13
8.3.10.0040.00421.77
8.3.00.0040.00417.34
8.2.180.0130.01018.54
8.2.170.0100.01022.96
8.2.160.0100.01020.51
8.2.150.0040.00424.18
8.2.140.0030.00524.66
8.2.130.0000.00821.25
8.2.120.0050.00326.35
8.2.110.0030.00619.58
8.2.100.0080.00318.28
8.2.90.0040.00419.41
8.2.80.0000.00818.05
8.2.70.0040.00417.75
8.2.60.0040.00418.16
8.2.50.0080.00018.10
8.2.40.0040.00420.55
8.2.30.0040.00419.41
8.2.20.0080.00018.09
8.2.10.0040.00418.04
8.2.00.0030.00617.98
8.1.280.0000.02025.92
8.1.270.0080.00023.96
8.1.260.0000.00826.35
8.1.250.0080.00028.09
8.1.240.0060.00322.36
8.1.230.0110.00017.51
8.1.220.0050.00317.79
8.1.210.0060.00318.77
8.1.200.0060.00317.48
8.1.190.0000.00817.47
8.1.180.0080.00018.10
8.1.170.0040.00418.71
8.1.160.0000.00719.02
8.1.150.0040.00420.68
8.1.140.0040.00419.62
8.1.130.0000.00718.84
8.1.120.0030.00517.58
8.1.110.0040.00417.45
8.1.100.0000.00717.52
8.1.90.0070.00317.50
8.1.80.0030.00317.47
8.1.70.0070.00017.46
8.1.60.0040.00417.49
8.1.50.0000.00817.52
8.1.40.0040.00417.57
8.1.30.0040.00417.69
8.1.20.0060.00317.71
8.1.10.0000.00817.54
8.1.00.0060.00317.63
8.0.300.0050.00318.77
8.0.290.0050.00216.75
8.0.280.0040.00418.55
8.0.270.0050.00317.19
8.0.260.0070.00016.78
8.0.250.0000.00716.97
8.0.240.0070.00017.02
8.0.230.0040.00416.91
8.0.220.0040.00416.85
8.0.210.0040.00416.88
8.0.200.0000.00716.91
8.0.190.0040.00416.91
8.0.180.0000.00716.90
8.0.170.0070.00016.90
8.0.160.0000.00716.81
8.0.150.0040.00416.88
8.0.140.0080.00016.72
8.0.130.0030.00313.30
8.0.120.0070.00016.79
8.0.110.0040.00416.85
8.0.100.0040.00416.90
8.0.90.0040.00416.77
8.0.80.0060.01316.87
8.0.70.0000.00716.82
8.0.60.0040.00416.86
8.0.50.0070.00016.84
8.0.30.0080.01116.89
8.0.20.0110.01217.40
8.0.10.0070.00016.82
8.0.00.0070.01016.54
7.4.330.0030.00315.55
7.4.320.0030.00316.56
7.4.300.0000.00716.40
7.4.290.0040.00416.49
7.4.280.0060.00316.55
7.4.270.0000.00716.40
7.4.260.0030.00313.25
7.4.250.0000.00716.45
7.4.240.0070.00016.46
7.4.230.0030.00316.68
7.4.220.0150.01316.44
7.4.210.0110.00616.62
7.4.200.0030.00316.61
7.4.160.0040.01616.40
7.4.150.0040.01317.40
7.4.140.0080.00917.86
7.4.130.0100.01016.45
7.4.120.0140.00716.55
7.4.110.0130.00316.55
7.4.100.0160.00016.37
7.4.90.0080.00816.62
7.4.80.0110.00619.39
7.4.70.0080.00816.60
7.4.60.0080.00816.41
7.4.50.0040.01116.35
7.4.40.0050.01116.65
7.4.30.0090.00916.58
7.4.00.0130.00315.21
7.3.330.0060.00013.00
7.3.320.0000.00613.13
7.3.310.0000.00716.13
7.3.300.0030.00316.14
7.3.290.0070.00016.25
7.3.280.0100.00716.25
7.3.270.0140.00417.40
7.3.260.0090.01216.38
7.3.250.0130.00716.29
7.3.240.0040.01316.43
7.3.230.0080.00916.54
7.3.210.0160.00016.49
7.3.200.0130.00716.40
7.3.190.0030.01416.38
7.3.180.0100.01016.63
7.3.170.0100.00616.43
7.3.160.0120.00316.29
7.3.10.0100.00616.64
7.3.00.0030.01016.40
7.2.330.0030.01616.66
7.2.320.0160.00616.37
7.2.310.0120.00616.71
7.2.300.0110.00816.71
7.2.290.0060.01116.57
7.2.130.0070.00716.71
7.2.120.0090.00016.80
7.2.110.0030.00716.95
7.2.100.0080.00316.85
7.2.90.0000.01616.88
7.2.80.0030.01017.06
7.2.70.0100.00316.89
7.2.60.0030.00916.76
7.2.50.0030.01016.98
7.2.40.0070.00716.75
7.2.30.0070.00716.95
7.2.20.0000.01117.11
7.2.10.0060.00317.09
7.2.00.0030.01017.74
7.1.250.0040.01115.98
7.1.200.0060.00315.70
7.1.100.0070.00717.97
7.1.70.0000.01117.03
7.1.60.0140.01135.09
7.1.50.0140.01034.82
7.1.40.0190.01234.41
7.1.30.0120.01534.34
7.1.20.0180.00634.57
7.1.10.0000.01116.56
7.1.00.0060.00616.73
7.0.200.0060.00616.76
7.0.190.0050.00516.87
7.0.180.0030.00916.27
7.0.170.0060.00616.17
7.0.160.0060.00616.23
7.0.150.0030.00916.26
7.0.140.0040.00716.12
7.0.130.0040.00716.54
7.0.120.0030.00916.54
7.0.110.0100.00316.16
7.0.100.0000.01116.17
7.0.90.0060.00616.39
7.0.80.0060.00616.07
7.0.70.0040.00816.21
7.0.60.0080.00316.07
7.0.50.0090.00316.36
7.0.40.0000.01216.45
7.0.30.0090.00316.30
7.0.20.0030.00916.38
7.0.10.0000.01316.48
7.0.00.0030.01116.46

preferences:
53.16 ms | 400 KiB | 5 Q