3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo mb_convert_encoding ( 'äìè', 'windows-1251', '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)
8.3.60.0180.00318.27
8.3.50.0040.01416.25
8.3.40.0040.01118.59
8.3.30.0060.00918.64
8.3.20.0040.00420.16
8.3.10.0040.00421.78
8.3.00.0080.00017.53
8.2.180.0170.00318.55
8.2.170.0070.00722.96
8.2.160.0100.00720.47
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0080.00021.20
8.2.120.0080.00026.35
8.2.110.0070.00320.77
8.2.100.0060.00618.22
8.2.90.0000.00819.47
8.2.80.0000.00718.16
8.2.70.0000.00817.75
8.2.60.0070.00018.05
8.2.50.0040.00418.28
8.2.40.0000.00820.71
8.2.30.0000.00719.29
8.2.20.0000.00718.16
8.2.10.0040.00418.17
8.2.00.0040.00418.22
8.1.280.0100.01725.92
8.1.270.0080.00023.96
8.1.260.0080.00026.35
8.1.250.0050.00328.09
8.1.240.0030.00623.92
8.1.230.0090.00317.42
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0040.00717.11
8.1.190.0080.00017.35
8.1.180.0070.00018.10
8.1.170.0040.00418.70
8.1.160.0000.00818.96
8.1.150.0040.00420.68
8.1.140.0030.00519.68
8.1.130.0030.00318.90
8.1.120.0000.00717.53
8.1.110.0000.00717.55
8.1.100.0050.00217.59
8.1.90.0000.00917.53
8.1.80.0030.00317.54
8.1.70.0030.00317.47
8.1.60.0040.00417.54
8.1.50.0000.00817.54
8.1.40.0030.00617.62
8.1.30.0080.00017.71
8.1.20.0030.00617.52
8.1.10.0020.00517.55
8.1.00.0030.00617.47
8.0.300.0070.00018.77
8.0.290.0040.00416.75
8.0.280.0000.00718.54
8.0.270.0000.00817.14
8.0.260.0000.00616.86
8.0.250.0000.00717.04
8.0.240.0040.00417.02
8.0.230.0030.00316.97
8.0.220.0030.00316.75
8.0.210.0000.00716.86
8.0.200.0030.00316.94
8.0.190.0030.00616.86
8.0.180.0040.00416.89
8.0.170.0050.00316.96
8.0.160.0000.00716.90
8.0.150.0050.00316.75
8.0.140.0040.00416.80
8.0.130.0050.00013.32
8.0.120.0040.00416.75
8.0.110.0000.00816.70
8.0.100.0040.00416.68
8.0.90.0000.00716.84
8.0.80.0090.01316.80
8.0.70.0040.00416.91
8.0.60.0040.00416.89
8.0.50.0030.00516.75
8.0.30.0060.01017.11
8.0.20.0110.00817.40
8.0.10.0040.00416.89
8.0.00.0030.01416.83
7.4.330.0020.00215.55
7.4.320.0030.00316.48
7.4.300.0030.00316.58
7.4.290.0030.00716.58
7.4.280.0040.00316.55
7.4.270.0000.00716.50
7.4.260.0030.00313.25
7.4.250.0000.00916.44
7.4.240.0050.00216.48
7.4.230.0030.00316.41
7.4.220.0120.00616.59
7.4.210.0090.00716.50
7.4.200.0030.00316.30
7.4.160.0100.00816.38
7.4.150.0110.00617.40
7.4.140.0100.00917.86
7.4.130.0050.01216.46
7.4.120.0070.01216.46
7.4.110.0110.00716.45
7.4.100.0110.00616.32
7.4.90.0120.00416.47
7.4.80.0170.00419.39
7.4.70.0090.00616.36
7.4.60.0070.01016.32
7.4.50.0030.01316.59
7.4.40.0090.01016.47
7.4.30.0140.00316.48
7.4.00.0070.01215.09
7.3.330.0060.00013.00
7.3.320.0000.00513.09
7.3.310.0040.00416.10
7.3.300.0000.00716.21
7.3.290.0000.00616.25
7.3.280.0070.00916.21
7.3.270.0130.00317.40
7.3.260.0150.00516.45
7.3.250.0120.00416.36
7.3.240.0110.01016.39
7.3.230.0090.00916.23
7.3.210.0080.01116.20
7.3.200.0130.00316.34
7.3.190.0110.00516.50
7.3.180.0030.01216.58
7.3.170.0060.01016.50
7.3.160.0120.00316.58
7.3.120.0060.01214.89
7.3.110.0090.00914.74
7.3.100.0030.01414.79
7.3.90.0030.00914.82
7.3.80.0080.00814.86
7.3.70.0100.00014.54
7.3.60.0030.01314.83
7.3.50.0060.00614.63
7.3.40.0090.00614.92
7.3.30.0030.01414.70
7.3.20.0100.00616.48
7.3.10.0110.00016.71
7.3.00.0080.00416.67
7.2.330.0060.01216.42
7.2.320.0000.01716.59
7.2.310.0030.01316.58
7.2.300.0000.01716.61
7.2.290.0140.00916.61
7.2.250.0140.00714.91
7.2.240.0120.00615.16
7.2.230.0140.00315.17
7.2.220.0070.00415.09
7.2.210.0070.00714.76
7.2.200.0030.00914.98
7.2.190.0040.00715.15
7.2.180.0120.00314.89
7.2.170.0030.01214.87
7.2.110.0110.00716.70
7.2.100.0060.00816.49
7.2.90.0130.00416.68
7.2.80.0150.00316.59
7.2.70.0140.00616.97
7.2.60.0290.00816.69
7.2.50.0130.00817.01
7.2.40.0060.01116.98
7.2.30.0170.00016.98
7.2.20.0090.00916.94
7.2.10.0110.00716.70
7.2.00.0160.00517.98
7.1.330.0070.00715.75
7.1.320.0070.00715.68
7.1.310.0090.00615.82
7.1.300.0030.01015.84
7.1.290.0000.01415.80
7.1.280.0100.00715.70
7.1.270.0030.01316.08
7.1.260.0040.00815.53
7.1.230.0140.00615.80
7.1.220.0100.00515.57
7.1.210.2280.00715.40
7.1.200.0080.00715.69
7.1.190.0170.00015.66
7.1.180.0040.01215.68
7.1.170.0400.00015.79
7.1.160.0270.00415.47
7.1.150.0110.00615.91
7.1.140.0110.00415.64
7.1.130.0220.00315.92
7.1.120.0330.00315.81
7.1.110.0130.00915.57
7.1.100.0040.00917.03
7.1.90.0050.01015.90
7.1.80.0080.00815.82
7.1.70.0090.00416.29
7.1.60.0140.00825.36
7.1.50.0100.01225.20
7.1.40.0150.00825.18
7.1.30.0110.01125.30
7.1.20.0100.01025.21
7.1.10.0050.00916.13
7.1.00.0080.00716.31
7.0.310.0140.00015.41
7.0.300.0090.00615.45
7.0.290.0080.00815.20
7.0.280.0110.00415.23
7.0.270.0110.00315.56
7.0.260.0130.00315.12
7.0.250.0060.00915.55
7.0.240.0140.00015.40
7.0.230.0120.00315.36
7.0.220.0130.00515.55
7.0.210.0080.00415.46
7.0.200.0090.00416.17
7.0.190.0070.00516.08
7.0.180.0090.00515.84
7.0.170.0090.00415.86
7.0.160.0090.00415.79
7.0.150.0070.00615.71
7.0.140.0070.00715.82
7.0.130.0070.00515.89
7.0.120.0100.00416.02
7.0.110.0050.00815.89
7.0.100.0100.00315.92
7.0.90.0100.00415.81
7.0.80.0100.00815.93
7.0.70.0070.00615.88
7.0.60.0090.00515.65
7.0.50.0070.00715.97
7.0.40.0030.01115.21
7.0.30.0080.00614.79
7.0.20.0070.00615.02
7.0.10.0100.00414.96
7.0.00.0060.00815.03
5.6.380.0090.00614.22

preferences:
36.63 ms | 401 KiB | 5 Q