3v4l.org

run code in 300+ PHP versions simultaneously
<?php class utils { function replace_unicode_escape_sequence($match) { return mb_convert_encoding(pack('H*', $match[1]), 'UTF-8', 'UCS-2BE'); } public static function to_decode($str) { return preg_replace_callback('/\\\\u([0-9a-f]{4})/i', 'replace_unicode_escape_sequence', $str); } } $str = '{"name":"F\u00f6retag: Betalning"}'; echo utils::to_decode($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)
8.3.40.0090.00618.89
8.3.30.0070.00719.17
8.3.20.0000.00720.39
8.3.10.0030.00623.53
8.3.00.0040.00420.90
8.2.170.0140.00022.96
8.2.160.0130.00320.45
8.2.150.0080.00024.18
8.2.140.0030.00524.66
8.2.130.0000.00726.16
8.2.120.0080.00020.52
8.2.110.0030.00620.53
8.2.100.0080.00419.57
8.2.90.0040.00419.22
8.2.80.0050.00317.97
8.2.70.0030.00617.63
8.2.60.0050.00517.68
8.2.50.0000.00818.07
8.2.40.0030.00519.82
8.2.30.0000.00818.05
8.2.20.0000.00817.55
8.2.10.0040.00418.09
8.2.00.0080.00417.67
8.1.270.0090.00021.97
8.1.260.0000.00826.35
8.1.250.0040.00428.09
8.1.240.0060.00324.02
8.1.230.0110.00017.45
8.1.220.0050.00317.74
8.1.210.0040.00418.77
8.1.200.0090.00017.36
8.1.190.0000.00817.23
8.1.180.0040.00419.13
8.1.170.0030.00518.58
8.1.160.0040.00421.96
8.1.150.0050.00318.49
8.1.140.0080.00017.27
8.1.130.0070.00017.74
8.1.120.0000.00717.30
8.1.110.0000.00717.40
8.1.100.0070.00017.33
8.1.90.0000.00817.30
8.1.80.0000.00817.43
8.1.70.0030.00317.33
8.1.60.0030.00717.58
8.1.50.0040.00417.39
8.1.40.0060.00317.47
8.1.30.0000.00817.62
8.1.20.0040.00417.66
8.1.10.0000.00917.63
8.1.00.0000.00717.47
8.0.300.0000.00718.77
8.0.290.0040.00416.75
8.0.280.0000.00718.39
8.0.270.0070.00017.20
8.0.260.0080.00017.13
8.0.250.0030.00316.99
8.0.240.0000.00716.96
8.0.230.0000.00716.95
8.0.220.0000.00716.94
8.0.210.0030.00316.90
8.0.200.0050.00216.98
8.0.190.0040.00416.96
8.0.180.0040.00416.91
8.0.170.0030.00316.90
8.0.160.0030.00316.90
8.0.150.0030.00316.79
8.0.140.0040.00416.81
8.0.130.0000.00513.27
8.0.120.0030.00616.75
8.0.110.0000.00716.85
8.0.100.0080.00016.84
8.0.90.0000.00716.83
8.0.80.0060.01216.85
8.0.70.0040.00416.76
8.0.60.0040.00416.96
8.0.50.0050.00216.96
8.0.30.0090.01116.98
8.0.20.0100.00917.40
8.0.10.0040.00417.05
8.0.00.0070.00916.67
7.4.330.0020.00215.00
7.4.320.0000.00616.44
7.4.300.0030.00316.39
7.4.290.0000.00916.51
7.4.280.0080.00016.50
7.4.270.0050.00316.58
7.4.260.0070.00016.60
7.4.250.0070.00016.47
7.4.240.0040.00416.46
7.4.230.0070.00016.63
7.4.220.0190.00716.61
7.4.210.0090.00716.56
7.4.200.0040.00416.66
7.4.190.0000.00716.41
7.4.160.0120.00816.40
7.4.150.0100.00717.40
7.4.140.0110.00917.86
7.4.130.0130.00816.64
7.4.120.0120.00516.49
7.4.110.0100.00616.47
7.4.100.0130.00616.57
7.4.90.0060.01016.59
7.4.80.0160.00619.39
7.4.70.0120.00916.58
7.4.60.0130.00816.40
7.4.50.0000.00916.69
7.4.40.0090.00916.51
7.4.30.0110.00716.61
7.4.00.0060.01215.07
7.3.330.0000.00513.25
7.3.320.0020.00213.36
7.3.310.0000.00716.30
7.3.300.0070.00016.25
7.3.290.0070.01016.30
7.3.280.0100.00916.31
7.3.270.0150.00917.40
7.3.260.0030.01416.27
7.3.250.0070.01016.40
7.3.240.0120.00816.55
7.3.230.0050.01116.42
7.3.210.0060.01116.39
7.3.200.0070.01019.39
7.3.190.0100.01116.36
7.3.180.0090.00616.21
7.3.170.0130.00316.33
7.3.160.0060.00916.36
7.3.120.0050.01214.93
7.3.110.0100.00714.84
7.3.100.0090.00914.88
7.3.90.0130.00614.80
7.3.80.0040.00814.56
7.3.70.0060.00914.61
7.3.60.0130.00314.58
7.3.50.0090.00614.72
7.3.40.0000.01114.66
7.3.30.0100.00614.70
7.3.20.0060.00616.74
7.3.10.0050.00816.64
7.3.00.0010.01016.56
7.2.330.0140.00816.60
7.2.320.0080.01116.14
7.2.310.0060.01216.51
7.2.300.0130.00316.66
7.2.290.0210.00316.68
7.2.250.0130.00715.10
7.2.240.0070.01314.95
7.2.230.0070.01115.20
7.2.220.0040.01414.95
7.2.210.0070.01114.77
7.2.200.0040.01215.09
7.2.190.0110.00414.71
7.2.180.0100.00314.54
7.2.170.0000.01414.99
7.2.130.0060.01216.59
7.2.120.0070.00716.67
7.2.110.0070.01016.93
7.2.100.0000.01416.81
7.2.90.0060.00916.76
7.2.80.0110.00416.78
7.2.70.0070.00716.72
7.2.60.0090.00616.64
7.2.50.0140.00016.84
7.2.40.0040.01116.68
7.2.30.0040.00816.74
7.2.20.0070.01016.80
7.2.10.0030.00816.85
7.2.00.0070.00818.06
7.1.330.0030.01315.79
7.1.320.0110.00615.65
7.1.310.0000.01415.76
7.1.300.0090.00315.78
7.1.290.0030.01215.53
7.1.280.0070.00715.61
7.1.270.0060.00315.55
7.1.260.0110.00415.71
7.1.250.0120.00315.62
7.1.100.0100.01417.75
7.1.70.0030.01017.24
7.1.60.0070.01719.46
7.1.50.0140.01116.97
7.1.00.0030.07722.31
7.0.200.0050.00316.73
7.0.140.0030.07321.98
7.0.100.0070.08719.95
7.0.90.0130.08020.01
7.0.80.0230.06719.85
7.0.70.0130.08019.86
7.0.60.0070.08019.93
7.0.50.0130.09720.30
7.0.40.0070.08720.04
7.0.30.0100.08020.05
7.0.20.0030.07320.13
7.0.10.0170.07020.10
7.0.00.0030.08020.13
5.6.280.0030.07320.89
5.6.250.0070.08720.75
5.6.240.0130.03720.65
5.6.230.0000.05720.64
5.6.220.0130.04020.68
5.6.210.0070.07020.75
5.6.200.0100.07021.05
5.6.190.0100.08321.18
5.6.180.0100.04721.11
5.6.170.0030.09021.06
5.6.160.0100.04721.12
5.6.150.0100.07720.96
5.6.140.0170.06021.08
5.6.130.0070.08321.04
5.6.120.0100.08021.05
5.6.110.0100.08021.07
5.6.100.0100.08020.99
5.6.90.0130.08021.02
5.6.80.0100.06720.50
5.6.70.0000.04320.48
5.6.60.0100.07020.41
5.6.50.0030.05020.41
5.6.40.0030.07020.38
5.6.30.0100.07320.43
5.6.20.0000.07020.37
5.6.10.0100.04320.40
5.6.00.0130.08320.42
5.5.380.0070.08020.55
5.5.370.0030.07720.35
5.5.360.0030.05320.39
5.5.350.0030.08320.44
5.5.340.0030.08020.79
5.5.330.0070.05020.78
5.5.320.0100.05720.94
5.5.310.0130.08020.84
5.5.300.0100.08020.78
5.5.290.0130.06320.86
5.5.280.0070.05020.84
5.5.270.0100.05320.74
5.5.260.0100.08020.88
5.5.250.0070.05720.71
5.5.240.0070.06720.04
5.5.230.0200.06020.14
5.5.220.0030.08320.27
5.5.210.0230.03720.21
5.5.200.0030.08020.19
5.5.190.0100.04720.21
5.5.180.0100.09320.21
5.5.160.0030.08720.24
5.5.150.0170.07320.13
5.5.140.0030.04720.10
5.5.130.0000.07720.14
5.5.120.0070.06320.23
5.5.110.0070.07320.25
5.5.100.0170.06720.11
5.5.90.0230.02720.07
5.5.80.0000.05020.08
5.5.70.0070.07020.07
5.5.60.0100.06020.14
5.5.50.0030.08020.10
5.5.40.0100.06720.09
5.5.30.0070.04320.05
5.5.20.0070.07020.15
5.5.10.0130.07320.13
5.5.00.0030.08320.02
5.4.450.0070.08019.38
5.4.440.0130.08019.47
5.4.430.0070.07019.50
5.4.420.0130.07319.37
5.4.410.0000.08319.32
5.4.400.0000.04019.04
5.4.390.0130.06719.19
5.4.380.0030.05019.05
5.4.370.0030.06319.03
5.4.360.0100.06719.12
5.4.350.0100.07319.25
5.4.340.0070.04318.95
5.4.320.0070.08018.90
5.4.310.0170.07319.16
5.4.300.0070.07018.90
5.4.290.0100.06319.09
5.4.280.0030.06719.07
5.4.270.0070.07719.02
5.4.260.0030.07719.04
5.4.250.0170.06719.13
5.4.240.0070.06019.04
5.4.230.0000.04719.04
5.4.220.0130.07719.09
5.4.210.0100.07319.11
5.4.200.0070.06718.87
5.4.190.0170.06319.20
5.4.180.0000.07719.03
5.4.170.0030.08018.81
5.4.160.0030.07019.11
5.4.150.0170.03719.01
5.4.140.0100.05716.41
5.4.130.0070.06016.17
5.4.120.0070.06716.41
5.4.110.0070.05316.27
5.4.100.0100.07016.50
5.4.90.0130.06716.42
5.4.80.0130.06316.42
5.4.70.0070.07316.41
5.4.60.0030.07016.48
5.4.50.0030.05716.39
5.4.40.0100.07016.53
5.4.30.0100.03716.48
5.4.20.0070.07016.36
5.4.10.0100.07316.44
5.4.00.0070.05315.89
5.3.290.0070.07014.80
5.3.280.0030.07314.63
5.3.270.0100.07314.70
5.3.260.0070.06714.73
5.3.250.0070.07714.67
5.3.240.0070.08314.64
5.3.230.0100.06714.57
5.3.220.0070.03714.54
5.3.210.0000.05014.63
5.3.200.0070.07714.66
5.3.190.0030.06314.62
5.3.180.0070.07714.63
5.3.170.0030.08314.57
5.3.160.0070.07714.61
5.3.150.0070.07014.62
5.3.140.0170.06714.61
5.3.130.0070.06714.68
5.3.120.0170.06314.51
5.3.110.0070.07314.47
5.3.100.0030.07714.14
5.3.90.0000.07314.08
5.3.80.0070.05014.00
5.3.70.0070.06714.00
5.3.60.0070.06314.03
5.3.50.0000.07313.98
5.3.40.0100.06314.00
5.3.30.0130.02313.91
5.3.20.0070.03013.70
5.3.10.0070.07313.80
5.3.00.0030.07013.71
5.2.170.0070.05711.14
5.2.160.0000.04011.08
5.2.150.0000.04311.29
5.2.140.0030.02711.03
5.2.130.0000.06711.21
5.2.120.0030.06010.99
5.2.110.0000.06711.09
5.2.100.0000.06011.11
5.2.90.0070.05311.20
5.2.80.0030.06011.03
5.2.70.0000.06711.13
5.2.60.0070.05311.08
5.2.50.0000.05310.93
5.2.40.0000.06710.91
5.2.30.0000.04311.04
5.2.20.0070.05010.96
5.2.10.0100.04310.87
5.2.00.0100.05310.65
5.1.60.0030.0579.99
5.1.50.0000.03010.08
5.1.40.0000.05010.05
5.1.30.0100.05010.37
5.1.20.0070.05310.29
5.1.10.0000.05710.06
5.1.00.0000.05710.15
5.0.50.0100.0238.64
5.0.40.0000.0308.64
5.0.30.0030.0478.64
5.0.20.0030.0438.64
5.0.10.0030.0438.64
5.0.00.0070.0608.64
4.4.90.0000.0338.64
4.4.80.0070.0278.64
4.4.70.0000.0338.64
4.4.60.0070.0278.64
4.4.50.0030.0308.64
4.4.40.0000.0338.64
4.4.30.0000.0178.64
4.4.20.0000.0378.64
4.4.10.0000.0378.64
4.4.00.0000.0508.64
4.3.110.0000.0378.64
4.3.100.0030.0338.64
4.3.90.0070.0338.64
4.3.80.0070.0508.64
4.3.70.0000.0238.64
4.3.60.0070.0238.64
4.3.50.0100.0278.64
4.3.40.0000.0538.64
4.3.30.0000.0378.64
4.3.20.0030.0138.64
4.3.10.0000.0338.64
4.3.00.0000.0278.64

preferences:
48.84 ms | 400 KiB | 5 Q