3v4l.org

run code in 300+ PHP versions simultaneously
<?php function jsonRemoveUnicodeSequences($struct) { return preg_replace("/\\\\u([a-f0-9]{4})/e", "iconv('UCS-4LE','UTF-8',pack('V', hexdec('U$1')))", json_encode($struct)); } echo jsonRemoveUnicodeSequences(" ОРД 02: Украине пригодится опыт хорватов для борьбы с \u00ab мирными сепаратистами \u00bb ");

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)
8.3.60.0080.01218.30
8.3.50.0110.01121.99
8.3.40.0130.00718.79
8.3.30.0070.01318.71
8.3.20.0080.00018.65
8.3.10.0040.00420.57
8.3.00.0040.00421.95
8.2.180.0130.00316.63
8.2.170.0030.01022.96
8.2.160.0110.00420.35
8.2.150.0070.00024.18
8.2.140.0070.00024.66
8.2.130.0000.00826.16
8.2.120.0000.00819.36
8.2.110.0060.00321.07
8.2.100.0070.00417.72
8.2.90.0040.00419.08
8.2.80.0050.00317.97
8.2.70.0000.00817.50
8.2.60.0050.00217.93
8.2.50.0060.00318.07
8.2.40.0080.00018.03
8.2.30.0030.00717.90
8.2.20.0050.00317.59
8.2.10.0050.00317.46
8.2.00.0050.00317.61
8.1.280.0120.00925.92
8.1.270.0070.00023.99
8.1.260.0050.00326.35
8.1.250.0060.00328.09
8.1.240.0000.01022.39
8.1.230.0110.00020.88
8.1.220.0040.00418.77
8.1.210.0090.00018.81
8.1.200.0060.00317.25
8.1.190.0040.00417.28
8.1.180.0000.00718.10
8.1.170.0180.00018.44
8.1.160.0040.00418.71
8.1.150.0060.00318.57
8.1.140.0040.00417.37
8.1.130.0000.00717.76
8.1.120.0000.00717.36
8.1.110.0060.00617.41
8.1.100.0000.00717.25
8.1.90.0070.00017.31
8.1.80.0040.00417.36
8.1.70.0030.00317.28
8.1.60.0000.00817.50
8.1.50.0040.00417.29
8.1.40.0040.00417.35
8.1.30.0080.00017.47
8.1.20.0050.00317.54
8.1.10.0030.00617.36
8.1.00.0040.00417.43
8.0.300.0000.00719.79
8.0.290.0030.00516.75
8.0.280.0070.00018.41
8.0.270.0030.00417.25
8.0.260.0030.00316.75
8.0.250.0040.00416.95
8.0.240.0000.00816.90
8.0.230.0000.00716.87
8.0.220.0040.00416.84
8.0.210.0060.00316.74
8.0.200.0000.00716.85
8.0.190.0040.00416.88
8.0.180.0040.00416.80
8.0.170.0030.00616.85
8.0.160.0050.00316.90
8.0.150.0030.00616.67
8.0.140.0110.00016.76
8.0.130.0050.00013.26
8.0.120.0000.00816.76
8.0.110.0040.00416.81
8.0.100.0000.00716.85
8.0.90.0000.00816.61
8.0.80.0120.00916.88
8.0.70.0050.00216.65
8.0.60.0030.00516.85
8.0.50.0000.00816.89
8.0.30.0030.01516.97
8.0.20.0110.01017.40
8.0.10.0000.00816.95
8.0.00.0120.00916.79
7.4.330.0030.00314.71
7.4.320.0070.00016.27
7.4.300.0000.00816.54
7.4.290.0040.00416.57
7.4.280.0050.00516.32
7.4.270.0080.00016.42
7.4.260.0000.00513.13
7.4.250.0030.00616.39
7.4.240.0040.00416.51
7.4.230.0030.00316.34
7.4.220.0070.01116.49
7.4.210.0060.00916.47
7.4.200.0050.00216.43
7.4.190.0030.00316.44
7.4.160.0130.00316.31
7.4.150.0110.00717.40
7.4.140.0090.00917.86
7.4.130.0060.01016.47
7.4.120.0150.00516.53
7.4.110.0130.00316.21
7.4.100.0130.00816.55
7.4.90.0090.00916.50
7.4.80.0090.01219.04
7.4.70.0090.00816.50
7.4.60.0170.00016.16
7.4.50.0000.00616.23
7.4.40.0090.00322.27
7.4.30.0070.01316.55
7.4.00.0030.01514.70
7.3.330.0000.00613.31
7.3.320.0030.00313.25
7.3.310.0000.00716.30
7.3.300.0030.00316.26
7.3.290.0150.00316.29
7.3.280.0090.00816.29
7.3.270.0130.00617.40
7.3.260.0140.00618.24
7.3.250.0100.01116.44
7.3.240.0100.00616.33
7.3.230.0060.01116.39
7.3.210.0140.00316.36
7.3.200.0130.01019.39
7.3.190.0060.01416.22
7.3.180.0100.00616.41
7.3.170.0080.00816.45
7.3.160.0120.00316.64
7.3.120.0030.01214.77
7.2.330.0100.00716.52
7.2.320.0110.00716.70
7.2.310.0050.02116.80
7.2.300.0070.01016.70
7.2.290.0060.01016.56
7.2.60.0130.00317.09
7.2.00.0060.00919.67
7.1.200.0110.00015.86
7.1.100.0030.00818.40
7.1.70.0030.01117.40
7.1.60.0070.01819.40
7.1.50.0000.02217.02
7.1.00.0000.05322.32
7.0.200.0040.00417.00
7.0.140.0000.07722.07
7.0.90.0000.05021.70
7.0.80.0030.05721.66
7.0.70.0170.03321.82
7.0.60.0100.07721.80
7.0.50.0000.05022.14
7.0.40.0070.08319.99
7.0.30.0030.05020.11
7.0.20.0030.05320.10
7.0.10.0070.06720.03
7.0.00.0000.08020.18
5.6.280.0000.08021.14
5.6.240.0000.04320.68
5.6.230.0030.07720.60
5.6.220.0070.06020.65
5.6.210.0030.08020.63
5.6.200.0070.08021.27
5.6.190.0030.08021.18
5.6.180.0070.08021.27
5.6.170.0100.07721.11
5.6.160.0100.08021.18
5.6.150.0070.07021.17
5.6.140.0070.07021.11
5.6.130.0030.06021.23
5.6.120.0100.06021.24
5.6.110.0100.06321.18
5.6.100.0130.07321.19
5.6.90.0000.07321.25
5.6.80.0000.07020.62
5.6.70.0070.06720.62
5.6.60.0100.08720.55
5.6.50.0070.08020.50
5.6.40.0100.07720.58
5.6.30.0100.06720.58
5.6.20.0100.08320.62
5.6.10.0170.07720.59
5.6.00.0170.07020.58
5.5.380.0000.08320.36
5.5.370.0170.06720.36
5.5.360.0070.08020.41
5.5.350.0070.07320.46
5.5.340.0070.08321.09
5.5.330.0100.06321.01
5.5.320.0030.05021.08
5.5.310.0070.04721.02
5.5.300.0070.08021.04
5.5.290.0100.05321.00
5.5.280.0030.07321.04
5.5.270.0100.07721.02
5.5.260.0100.07720.98
5.5.250.0100.07320.75
5.5.240.0070.04020.47
5.5.230.0030.07720.45
5.5.220.0030.07720.39
5.5.210.0030.07020.45
5.5.200.0000.05020.27
5.5.190.0030.08320.37
5.5.180.0070.09020.27
5.5.160.0070.07320.27
5.5.150.0170.06720.36
5.5.140.0070.08320.33
5.5.130.0100.03720.41
5.5.120.0030.04720.33
5.5.110.0070.06720.39
5.5.100.0170.06020.26
5.5.90.0130.03720.13
5.5.80.0130.06720.21
5.5.70.0030.05720.22
5.5.60.0100.03320.31
5.5.50.0070.05720.23
5.5.40.0030.08020.21
5.5.30.0130.04720.30
5.5.20.0030.06320.29
5.5.10.0030.05720.14
5.5.00.0170.07320.22
5.4.450.0030.08019.57
5.4.440.0070.08319.57
5.4.430.0100.07719.60
5.4.420.0070.07019.46
5.4.410.0100.05719.25
5.4.400.0000.08319.20
5.4.390.0000.07019.04
5.4.380.0000.08019.10
5.4.370.0070.08019.20
5.4.360.0070.05719.11
5.4.350.0030.04719.36
5.4.340.0130.06019.28
5.4.320.0000.07019.25
5.4.310.0070.07019.01
5.4.300.0100.08019.18
5.4.290.0000.08019.30
5.4.280.0100.06719.05
5.4.270.0170.06319.07
5.4.260.0030.08719.38
5.4.250.0070.06319.19
5.4.240.0100.07719.05
5.4.230.0070.07319.18
5.4.220.0000.05019.03
5.4.210.0030.04719.20
5.4.200.0030.06319.02
5.4.190.0000.05319.32
5.4.180.0030.04319.19
5.4.170.0030.04719.31
5.4.160.0000.08719.27
5.4.150.0000.06319.36
5.4.140.0030.07016.62
5.4.130.0070.03716.61
5.4.120.0070.06716.53
5.4.110.0130.04016.56
5.4.100.0030.05316.54
5.4.90.0000.05016.72
5.4.80.0100.06016.54
5.4.70.0030.04316.66
5.4.60.0030.06316.70
5.4.50.0070.07316.66
5.4.40.0100.07316.63
5.4.30.0030.08016.51
5.4.20.0070.05316.60
5.4.10.0070.06716.67
5.4.00.0000.08315.79
5.3.290.0030.07014.75
5.3.280.0100.07714.68
5.3.270.0070.04714.85
5.3.260.0030.06014.79
5.3.250.0030.07014.82
5.3.240.0030.05314.79
5.3.230.0100.07714.82
5.3.220.0070.03714.69
5.3.210.0070.05014.69
5.3.200.0030.07714.77
5.3.190.0030.04014.80
5.3.180.0070.08014.88
5.3.170.0030.04014.67
5.3.160.0070.07014.86
5.3.150.0170.06714.70
5.3.140.0070.07714.71
5.3.130.0130.06714.77
5.3.120.0030.08014.73
5.3.110.0070.07714.67
5.3.100.0100.07314.26
5.3.90.0000.07714.27
5.3.80.0070.05014.10
5.3.70.0100.06714.15
5.3.60.0070.06714.22
5.3.50.0030.04714.25
5.3.40.0030.08014.20
5.3.30.0030.09714.04
5.3.20.0030.07713.76
5.3.10.0070.06713.72
5.3.00.0030.06313.81
5.2.170.0030.03311.42
5.2.160.0070.04711.36
5.2.150.0100.06011.36
5.2.140.0070.06711.30
5.2.130.0070.05311.32
5.2.120.0000.06311.32
5.2.110.0000.05311.28
5.2.100.0030.06011.31
5.2.90.0030.06711.32
5.2.80.0030.06311.18
5.2.70.0070.05011.27
5.2.60.0030.06311.27
5.2.50.0070.07311.20
5.2.40.0000.05011.18
5.2.30.0000.03711.14
5.2.20.0000.05711.13
5.2.10.0030.06310.92
5.2.00.0000.06310.82
5.1.60.0030.0539.98
5.1.50.0030.05710.00
5.1.40.0100.03310.09
5.1.30.0000.06310.36
5.1.20.0070.04710.41
5.1.10.0000.05310.17
5.1.00.0030.05710.18
5.0.50.0100.0238.60
5.0.40.0100.0378.39
5.0.30.0000.0638.07
5.0.20.0000.0238.19
5.0.10.0000.0438.29
5.0.00.0000.0578.26
4.4.90.0070.0237.22
4.4.80.0030.0337.22
4.4.70.0030.0277.22
4.4.60.0100.0337.22
4.4.50.0000.0337.22
4.4.40.0000.0537.22
4.4.30.0000.0337.22
4.4.20.0000.0337.22
4.4.10.0000.0337.22
4.4.00.0000.0537.22
4.3.110.0000.0237.22
4.3.100.0000.0207.22
4.3.90.0070.0277.22
4.3.80.0070.0507.22
4.3.70.0070.0207.22
4.3.60.0000.0337.22
4.3.50.0000.0307.22
4.3.40.0070.0477.22
4.3.30.0030.0337.22
4.3.20.0000.0277.22
4.3.10.0000.0337.22
4.3.00.0000.0377.22

preferences:
40.43 ms | 401 KiB | 5 Q