3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = '\u062f\u0648\u0646\u0647 \u0645\u0646\u2665\u2665\u2665\u2665'; $str = preg_replace_callback('/\\\\u([0-9a-fA-F]{4})/', function ($match) { return mb_convert_encoding(pack('H*', $match[1]), 'UTF-8', 'UCS-2BE'); } , $str); echo $str;

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)
8.5.10.0110.00620.16
8.5.00.0110.01322.03
8.4.150.0020.00114.05
8.4.140.0150.00617.80
8.4.130.0060.00418.08
8.4.120.0060.00324.25
8.4.110.0100.01018.84
8.4.100.0130.00918.71
8.4.90.0120.00518.86
8.4.80.0070.00217.93
8.4.70.0060.00218.09
8.4.60.0110.00819.09
8.4.50.0140.00618.84
8.4.40.0100.01017.80
8.4.30.0100.00019.86
8.4.20.0130.00719.80
8.4.10.0160.00322.18
8.3.280.0140.00818.55
8.3.270.0130.00816.69
8.3.260.0120.00717.32
8.3.250.0130.00519.05
8.3.240.0110.00917.28
8.3.230.0140.00617.17
8.3.220.0080.00517.00
8.3.210.0050.00418.81
8.3.200.0070.00216.86
8.3.190.0100.00917.08
8.3.180.0110.00916.71
8.3.170.0120.00616.92
8.3.160.0000.01416.68
8.3.150.0100.01019.09
8.3.140.0150.00319.24
8.3.130.0040.00416.98
8.3.120.0120.00318.89
8.3.110.0130.00320.94
8.3.100.0030.00624.06
8.3.90.0000.00826.77
8.3.80.0060.00616.85
8.3.70.0100.01016.63
8.3.60.0130.00318.18
8.3.50.0110.01121.31
8.3.40.0060.00918.99
8.3.30.0140.00318.75
8.3.20.0130.00321.77
8.3.10.0040.00421.76
8.3.00.0090.00023.66
8.2.290.0060.00420.18
8.2.280.0110.00818.71
8.2.270.0090.00916.70
8.2.260.0100.01019.13
8.2.250.0060.00317.27
8.2.240.0000.00918.91
8.2.230.0080.00022.58
8.2.220.0030.01237.54
8.2.210.0090.00926.77
8.2.200.0030.00616.63
8.2.190.0070.01116.58
8.2.180.0090.00625.92
8.2.170.0070.01419.00
8.2.160.0100.00720.54
8.2.150.0070.01124.18
8.2.140.0110.00724.66
8.2.130.0040.00426.16
8.2.120.0030.00521.13
8.2.110.0090.00019.39
8.2.100.0090.00318.16
8.2.90.0060.00319.45
8.2.80.0080.00019.07
8.2.70.0050.00318.00
8.2.60.0030.00618.00
8.2.50.0080.00018.00
8.2.40.0080.00020.03
8.2.30.0060.00321.07
8.2.20.0040.00418.09
8.2.10.0070.00018.19
8.2.00.0070.00017.92
8.1.330.0080.00821.86
8.1.320.0130.00716.16
8.1.310.0050.00316.89
8.1.300.0090.00018.29
8.1.290.0030.00618.88
8.1.280.0110.01125.92
8.1.270.0040.00423.97
8.1.260.0000.00726.35
8.1.250.0040.00428.09
8.1.240.0030.00622.05
8.1.230.0090.00320.95
8.1.220.0050.00317.79
8.1.210.0070.00319.08
8.1.200.0080.00017.60
8.1.190.0000.00817.48
8.1.180.0000.00818.10
8.1.170.0020.00517.63
8.1.160.0030.00322.17
8.1.150.0070.00018.98
8.1.140.0070.00019.55
8.1.130.0030.00317.73
8.1.120.0040.00417.56
8.1.110.0040.00717.68
8.1.100.0040.00417.70
8.1.90.0040.00417.63
8.1.80.0030.00517.74
8.1.70.0000.00917.58
8.1.60.0100.00017.82
8.1.50.0030.00517.77
8.1.40.0000.00917.58
8.1.30.0050.00317.92
8.1.20.0000.00817.85
8.1.10.0040.00717.66
8.1.00.0000.00917.66
8.0.300.0040.00420.09
8.0.290.0030.00516.88
8.0.280.0070.00018.51
8.0.270.0030.00317.29
8.0.260.0000.00717.35
8.0.250.0000.00817.10
8.0.240.0080.00017.13
8.0.230.0040.00417.05
8.0.220.0050.00217.00
8.0.210.0070.00017.03
8.0.200.0050.00317.22
8.0.190.0070.00017.05
8.0.180.0000.00717.14
8.0.170.0040.00417.08
8.0.160.0080.00017.17
8.0.150.0040.00417.10
8.0.140.0000.00717.00
8.0.130.0050.00013.46
8.0.120.0050.00316.97
8.0.110.0040.00417.11
8.0.100.0040.00416.96
8.0.90.0000.00817.11
8.0.80.0050.01117.04
8.0.70.0070.00017.16
8.0.60.0000.00816.93
8.0.50.0040.00416.99
8.0.30.0090.01117.29
8.0.20.0130.00717.40
8.0.10.0080.00017.22
8.0.00.0160.00016.83
7.4.330.0050.00215.55
7.4.320.0000.00816.79
7.4.300.0000.00716.90
7.4.290.0030.00316.91
7.4.280.0030.00316.91
7.4.270.0000.00716.87
7.4.260.0020.00516.70
7.4.250.0000.00716.75
7.4.240.0050.00316.85
7.4.230.0070.00016.85
7.4.220.0090.01016.88
7.4.210.0100.01016.72
7.4.200.0070.00016.71
7.4.160.0100.01116.71
7.4.150.0110.00717.40
7.4.140.0110.00617.86
7.4.130.0080.01216.62
7.4.120.0140.00616.87
7.4.110.0110.00716.64
7.4.100.0070.01316.90
7.4.90.0090.00916.59
7.4.80.0110.01119.39
7.4.70.0110.00816.71
7.4.60.0100.00716.71
7.4.50.0060.00316.54
7.4.40.0070.01016.74
7.4.30.0030.01616.84
7.4.00.0140.00315.01
7.3.330.0000.00613.58
7.3.320.0030.00313.53
7.3.310.0030.00316.48
7.3.300.0040.00316.54
7.3.290.0080.00916.53
7.3.280.0080.01116.54
7.3.270.0090.00917.40
7.3.260.0110.00616.74
7.3.250.0100.00716.68
7.3.240.0100.00816.63
7.3.230.0180.00616.54
7.3.210.0140.00416.72
7.3.200.0080.00816.54
7.3.190.0120.00916.63
7.3.180.0100.01016.60
7.3.170.0150.00316.41
7.3.160.0130.00416.52
7.3.120.0100.00717.15
7.3.110.0060.00917.15
7.3.100.0080.00817.15
7.3.90.0100.00617.15
7.3.80.0030.01017.15
7.3.70.0000.01717.15
7.3.60.0060.00617.15
7.3.50.0000.01217.15
7.3.40.0030.01317.15
7.3.30.0040.00817.15
7.3.20.0110.00317.15
7.3.10.0060.00916.98
7.3.00.0010.01317.01
7.2.330.0030.01616.99
7.2.320.0100.00716.98
7.2.310.0060.01016.85
7.2.300.0090.00916.96
7.2.290.0090.00816.81
7.2.240.0030.01317.15
7.2.230.0140.00317.15
7.2.220.0070.01117.15
7.2.210.0070.00717.15
7.2.200.0050.00817.15
7.2.190.0090.00617.15
7.2.180.0030.01017.15
7.2.170.0100.00717.15
7.2.160.0070.01117.15
7.2.150.0030.00717.15
7.2.140.0000.01817.15
7.2.130.0070.00717.08
7.2.120.0050.00917.17
7.2.110.0020.01417.05
7.2.100.0050.00917.00
7.2.90.0110.00517.02
7.2.80.0120.00617.00
7.2.70.0070.01017.08
7.2.60.0110.00517.10
7.2.50.0100.00517.27
7.2.40.0080.00717.08
7.2.30.0080.00617.13
7.2.20.0050.01017.22
7.2.10.0110.00617.29
7.2.00.0060.01117.11
7.1.330.0130.00317.15
7.1.320.0070.00317.15
7.1.310.0030.01317.15
7.1.300.0030.01317.15
7.1.290.0000.01517.15
7.1.280.0100.00717.15
7.1.270.0100.00717.15
7.1.260.0080.00817.15
7.1.250.0060.00616.27
7.1.240.0060.00615.98
7.1.230.0030.00716.02
7.1.220.0130.00315.83
7.1.210.0040.00716.05
7.1.200.0040.00815.87
7.1.190.0090.00615.98
7.1.180.0070.01015.68
7.1.170.0100.00315.70
7.1.160.0070.00715.95
7.1.150.0070.00715.95
7.1.140.0040.00915.98
7.1.130.0000.01515.69
7.1.120.0070.00716.00
7.1.110.0030.01015.85
7.1.100.0080.00415.89
7.1.90.0030.00515.76
7.1.80.0100.00316.01
7.1.70.0030.00916.57
7.1.60.0030.01116.52
7.1.50.0060.00316.12
7.1.40.0030.01315.93
7.1.30.0060.00616.02
7.1.20.0090.00615.94
7.1.10.0070.00715.76
7.1.00.0060.04119.18
7.0.330.0070.00715.56
7.0.320.0030.01015.66
7.0.310.0000.01415.65
7.0.300.0060.00615.61
7.0.290.0070.00315.66
7.0.280.0040.00915.79
7.0.270.0040.01115.47
7.0.260.0030.00715.58
7.0.250.0070.00715.64
7.0.240.0040.01115.62
7.0.230.0110.00315.29
7.0.220.0030.00915.49
7.0.210.0030.00615.68
7.0.200.0050.00815.42
7.0.190.0080.00815.61
7.0.180.0030.01315.58
7.0.170.0120.00315.48
7.0.160.0090.00615.73
7.0.150.0070.00715.72
7.0.140.0040.00715.38
7.0.130.0090.00615.75
7.0.120.3330.03518.06
7.0.110.1310.03617.88
7.0.100.3430.04418.05
7.0.90.0190.03217.84
7.0.80.0210.02617.93
7.0.70.0260.02618.02
7.0.60.0180.03317.88
7.0.50.0180.03918.02
7.0.40.0180.03017.10
7.0.30.0160.03316.89
7.0.20.0210.02617.04
7.0.10.0280.03116.94
7.0.00.0250.02817.00
5.6.380.0040.01114.77
5.6.370.0030.01014.25
5.6.360.0040.01114.56
5.6.350.0030.01314.09
5.6.340.0040.00414.57
5.6.330.0070.00714.09
5.6.320.0030.01014.62
5.6.310.0030.01014.27
5.6.300.0070.00714.55
5.6.290.0060.00614.53
5.6.280.0090.00614.64
5.6.270.0090.00014.29
5.6.260.0100.03017.81
5.6.250.0110.02917.94
5.6.240.0070.03317.83
5.6.230.0070.03417.80
5.6.220.0100.03317.84
5.6.210.0070.03017.81
5.6.200.0100.03617.74
5.6.190.0080.03217.76
5.6.180.0050.03517.68
5.6.170.0080.03117.73
5.6.160.0030.03317.55
5.6.150.0100.03017.67
5.6.140.0030.04317.83
5.6.130.0060.03417.74
5.6.120.0140.03017.66
5.6.110.0120.03017.79
5.6.100.0080.03517.71
5.6.90.0070.03217.68
5.6.80.0150.02417.36
5.6.70.0070.03017.30
5.6.60.0090.03117.31
5.6.50.0110.02617.28
5.6.40.0180.02117.18
5.6.30.0100.03317.10
5.6.20.0050.03517.50
5.6.10.0040.03217.49
5.6.00.0110.03017.23

preferences:
41.65 ms | 403 KiB | 5 Q