3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str='\u8bf7\u6c42\u4e2d\u6ca1\u6709'; echo $str='{"ste":"\u8bf7\u6c42\u4e2d\u6ca1\u6709"}'; //print_r(json_decode($str,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)
8.3.70.0180.00418.41
8.3.60.0040.01118.43
8.3.50.0090.00822.00
8.3.40.0060.00918.61
8.3.30.0100.00319.04
8.3.20.0040.00420.22
8.3.10.0040.00421.82
8.3.00.0080.00022.52
8.2.190.0130.00316.58
8.2.180.0060.00918.31
8.2.170.0040.01122.96
8.2.160.0070.00720.77
8.2.150.0050.00324.18
8.2.140.0050.00324.66
8.2.130.0030.00626.16
8.2.120.0090.00019.36
8.2.110.0060.00321.91
8.2.100.0080.00317.91
8.2.90.0030.00619.22
8.2.80.0030.00619.66
8.2.70.0000.00917.63
8.2.60.0040.00417.93
8.2.50.0000.00818.07
8.2.40.0030.00518.34
8.2.30.0040.00418.08
8.2.20.0000.00717.70
8.2.10.0040.00417.55
8.2.00.0080.00017.48
8.1.280.0070.01125.92
8.1.270.0040.00423.97
8.1.260.0080.00026.35
8.1.250.0000.00828.09
8.1.240.0030.00623.94
8.1.230.0030.00819.14
8.1.220.0020.00517.74
8.1.210.0060.00318.77
8.1.200.0060.00317.23
8.1.190.0040.00417.39
8.1.180.0070.00018.10
8.1.170.0080.00018.53
8.1.160.0030.00321.93
8.1.150.0000.00718.61
8.1.140.0070.00017.39
8.1.130.0040.00417.88
8.1.120.0030.00517.27
8.1.110.0000.00717.27
8.1.100.0000.00717.30
8.1.90.0000.00817.34
8.1.80.0030.00317.27
8.1.70.0000.00717.41
8.1.60.0030.00517.39
8.1.50.0050.00217.29
8.1.40.0040.00417.49
8.1.30.0000.01017.56
8.1.20.0040.00417.50
8.1.10.0040.00417.51
8.1.00.0040.00417.41
8.0.300.0070.00318.77
8.0.290.0000.00717.05
8.0.280.0030.00318.35
8.0.270.0000.00717.25
8.0.260.0070.00016.82
8.0.250.0000.00716.98
8.0.240.0030.00516.99
8.0.230.0040.00416.77
8.0.220.0040.00316.80
8.0.210.0000.00716.79
8.0.200.0030.00316.80
8.0.190.0030.00316.76
8.0.180.0030.00516.90
8.0.170.0040.00416.90
8.0.160.0000.00716.75
8.0.150.0040.00416.73
8.0.140.0080.00016.81
8.0.130.0000.00513.29
8.0.120.0040.00416.70
8.0.110.0040.00416.73
8.0.100.0000.00816.68
8.0.90.0000.00716.79
8.0.80.0100.00916.79
8.0.70.0030.00516.81
8.0.60.0000.00716.62
8.0.50.0080.00016.87
8.0.30.0120.00716.90
8.0.20.0070.01117.40
8.0.10.0000.00716.93
8.0.00.0120.00516.91
7.4.330.0000.00515.00
7.4.320.0000.00716.50
7.4.300.0030.00316.52
7.4.290.0030.00316.43
7.4.280.0030.00316.45
7.4.270.0030.00316.42
7.4.260.0030.00316.34
7.4.250.0000.00716.38
7.4.240.0040.00416.54
7.4.230.0040.00416.31
7.4.220.0040.01416.48
7.4.210.0080.01116.46
7.4.200.0030.00516.61
7.4.190.0040.00416.34
7.4.160.0060.01516.18
7.4.150.0170.00017.40
7.4.140.0160.00617.86
7.4.130.0080.00816.39
7.4.120.0090.00816.44
7.4.110.0110.00716.64
7.4.100.0070.01116.37
7.4.90.0140.00316.44
7.4.80.0170.00619.39
7.4.70.0030.01316.45
7.4.60.0040.01216.41
7.4.50.0040.00416.39
7.4.40.0170.00022.77
7.4.30.0120.00316.52
7.4.00.0090.01014.96
7.3.330.0020.00213.11
7.3.320.0000.00512.93
7.3.310.0030.00316.07
7.3.300.0030.00315.96
7.3.290.0070.00716.21
7.3.280.0080.01116.15
7.3.270.0120.00517.40
7.3.260.0120.00616.50
7.3.250.0130.00616.15
7.3.240.0130.00316.26
7.3.230.0110.00716.39
7.3.210.0100.00716.21
7.3.200.0080.01119.39
7.3.190.0060.01616.31
7.3.180.0070.01316.31
7.3.170.0090.00616.27
7.3.160.0170.00016.20
7.3.120.0090.00714.70
7.3.110.0070.01114.89
7.3.100.0100.00714.89
7.3.90.0030.01314.70
7.3.80.0030.01314.22
7.3.70.0080.00814.80
7.3.60.0040.00814.56
7.3.50.0030.00714.62
7.3.40.0090.00914.75
7.3.30.0070.00714.80
7.3.20.0060.01016.50
7.3.10.0060.00616.40
7.3.00.0070.00716.20
7.2.330.0100.00916.46
7.2.320.0120.00616.59
7.2.310.0070.01016.57
7.2.300.0180.01316.55
7.2.290.0110.00616.32
7.2.250.0060.01514.75
7.2.240.0070.01314.88
7.2.230.0030.01014.77
7.2.220.0030.01615.04
7.2.210.0100.00614.71
7.2.200.0090.00614.67
7.2.190.0070.00314.72
7.2.180.0090.00614.76
7.2.170.0070.01114.91
7.2.00.0040.01119.29
7.1.330.0000.01515.68
7.1.320.0090.00915.64
7.1.310.0150.00415.64
7.1.300.0060.00615.30
7.1.290.0070.01015.17
7.1.280.0090.00015.29
7.1.270.0030.00915.76
7.1.260.0070.00315.42
7.1.200.0060.00615.55
7.1.100.0000.01117.78
7.1.70.0040.00417.05
7.1.60.0060.00617.11
7.1.50.0100.01016.85
7.1.00.0030.07322.44
7.0.200.0060.00316.70
7.0.140.0000.07721.90
7.0.60.0030.06319.99
7.0.50.0130.07317.80
7.0.40.0170.07320.27
7.0.30.0270.07720.16
7.0.20.0270.05720.20
7.0.10.0030.05320.09
7.0.00.0070.09020.17
5.6.280.0030.07320.77
5.6.210.0000.07020.55
5.6.200.0100.08018.13
5.6.190.0100.08320.44
5.6.180.3400.04020.57
5.6.170.0130.04320.32
5.6.160.0100.08020.54
5.6.150.0030.04018.11
5.6.140.0070.06718.07
5.6.130.0070.07018.11
5.6.120.0070.07321.12
5.6.110.0070.05321.13
5.6.100.0070.08020.98
5.6.90.0130.07720.95
5.6.80.0070.06320.50
5.6.70.2600.02720.34
5.5.350.0100.08320.39
5.5.340.0100.05717.92
5.5.330.0070.08720.01
5.5.320.0170.04320.32
5.5.310.0300.07720.50
5.5.300.0100.07318.01
5.5.290.0030.05018.00
5.5.280.0100.06020.89
5.5.270.0130.04320.79
5.5.260.0100.08020.86
5.5.250.0070.03720.46
5.5.240.0100.08020.11
5.4.450.0600.04319.43
5.4.440.0100.05319.36
5.4.430.0470.04319.56
5.4.420.0300.02719.13
5.4.410.0100.05319.01
5.4.400.0100.06018.80
5.4.390.0200.05318.68
5.4.380.0130.05318.52
5.4.370.0370.04318.61
5.4.360.0130.05718.61
5.4.350.0070.06718.56
5.4.340.0230.04718.48
5.4.320.0110.04312.45
5.4.310.0070.04012.45
5.4.300.0050.03812.45
5.4.290.0080.04112.45
5.4.280.0040.03612.34
5.4.270.0050.03812.31
5.4.260.0080.03512.31
5.4.250.0050.03812.31
5.4.240.0040.03812.32
5.4.230.0060.03712.31
5.4.220.0030.04012.31
5.4.210.0050.03712.30
5.4.200.0040.05112.31
5.4.190.0060.03712.30
5.4.180.0080.03512.30
5.4.170.0050.03612.32
5.4.160.0050.03612.31
5.4.150.0060.03512.30
5.4.140.0060.03811.99
5.4.130.0050.03711.98
5.4.120.0020.03911.93
5.4.110.0050.03511.93
5.4.100.0060.04211.93
5.4.90.0040.03811.93
5.4.80.0100.03911.93
5.4.70.0060.03411.92
5.4.60.0040.03711.93
5.4.50.0100.03211.92
5.4.40.0060.03411.91
5.4.30.0050.03711.91
5.4.20.0050.03711.91
5.4.10.0050.03511.91
5.4.00.0050.03811.40
5.3.290.0070.04612.80
5.3.280.0080.03512.70
5.3.270.0110.04112.72
5.3.260.0080.03712.71
5.3.250.0040.03912.72
5.3.240.0090.03512.72
5.3.230.0080.04412.71
5.3.220.0040.03912.68
5.3.210.0080.03712.68
5.3.200.0060.03612.68
5.3.190.0060.03712.68
5.3.180.0070.03512.67
5.3.170.0060.03812.67
5.3.160.0050.03712.68
5.3.150.0070.03612.67
5.3.140.0050.03812.66
5.3.130.0040.04312.66
5.3.120.0070.03912.66
5.3.110.0060.04012.65
5.3.100.0070.03712.12
5.3.90.0040.05012.09
5.3.80.0060.03712.07
5.3.70.0060.03712.07
5.3.60.0070.03712.07
5.3.50.0030.04012.00
5.3.40.0060.03812.00
5.3.30.0100.03211.94
5.3.20.0050.03811.70
5.3.10.0060.03911.66
5.3.00.0070.04111.64
5.2.170.0060.0329.14
5.2.160.0030.0319.15
5.2.150.0040.0329.14
5.2.140.0060.0299.14
5.2.130.0040.0309.11
5.2.120.0070.0259.10
5.2.110.0030.0309.11
5.2.100.0040.0289.11
5.2.90.0050.0289.11
5.2.80.0020.0329.10
5.2.70.0040.0309.10
5.2.60.0030.0319.05
5.2.50.0050.0299.02
5.2.40.0110.0269.00
5.2.30.0040.0328.98
5.2.20.0040.0358.96
5.2.10.0050.0298.89
5.2.00.0090.0248.75
5.1.60.0060.0238.03
5.1.50.0060.0238.03
5.1.40.0050.0238.02
5.1.30.0040.0268.36
5.1.20.0030.0278.39
5.1.10.0050.0258.11
5.1.00.0040.0288.11
5.0.50.0050.0256.59
5.0.40.0040.0266.44
5.0.30.0030.0336.25
5.0.20.0060.0246.23
5.0.10.0030.0206.21
5.0.00.0040.0306.20
4.4.90.0040.0154.78
4.4.80.0040.0144.76
4.4.70.0040.0194.75
4.4.60.0040.0184.75
4.4.50.0030.0154.77
4.4.40.0040.0244.70
4.4.30.0010.0174.76
4.4.20.0020.0174.85
4.4.10.0040.0144.85
4.4.00.0030.0244.76
4.3.110.0040.0144.67
4.3.100.0010.0164.66
4.3.90.0040.0134.63
4.3.80.0030.0244.58
4.3.70.0020.0184.63
4.3.60.0010.0154.63
4.3.50.0030.0164.63
4.3.40.0010.0274.54
4.3.30.0020.0163.26
4.3.20.0030.0173.25
4.3.10.0010.0173.21
4.3.00.0000.01715.02

preferences:
41.27 ms | 401 KiB | 5 Q