3v4l.org

run code in 300+ PHP versions simultaneously
<?php $dec = json_decode('{"a":"A\u2028B"}'); print_r(json_encode($dec)); $json = json_encode($dec); $json = strtr( $json, array( "\xE2\x80\xA8" => '', // \u2028 "\xE2\x80\xA9" => '', // \u2029 ) ); $test = json_encode($dec, JSON_UNESCAPED_UNICODE); echo strlen($json), ' ', strlen($test);

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)
8.3.40.0040.01118.70
8.3.30.0170.00018.82
8.3.20.0040.00420.04
8.3.10.0000.00823.52
8.3.00.0050.00220.89
8.2.170.0140.00022.96
8.2.160.0110.00320.38
8.2.150.0050.00324.18
8.2.140.0050.00324.66
8.2.130.0080.00026.16
8.2.120.0000.00820.91
8.2.110.0030.00622.25
8.2.100.0120.00017.72
8.2.90.0030.00519.23
8.2.80.0000.00817.97
8.2.70.0000.00917.63
8.2.60.0080.00017.93
8.2.50.0040.00418.07
8.2.40.0090.00018.06
8.2.30.0070.00018.30
8.2.20.0040.00417.76
8.2.10.0020.00517.92
8.2.00.0040.00417.52
8.1.270.0080.00023.96
8.1.260.0070.00026.35
8.1.250.0000.00828.09
8.1.240.0060.00323.76
8.1.230.0070.00419.16
8.1.220.0060.00317.74
8.1.210.0050.00518.77
8.1.200.0040.00417.23
8.1.190.0040.00417.23
8.1.180.0090.00019.01
8.1.170.0000.00918.59
8.1.160.0040.00321.95
8.1.150.0080.00018.55
8.1.140.0040.00417.48
8.1.130.0000.00717.74
8.1.120.0030.00317.43
8.1.110.0090.00017.33
8.1.100.0040.00317.22
8.1.90.0000.00817.28
8.1.80.0040.00417.41
8.1.70.0070.00017.35
8.1.60.0000.00717.50
8.1.50.0030.00517.35
8.1.40.0040.00417.48
8.1.30.0040.00417.41
8.1.20.0000.00817.55
8.1.10.0050.00317.54
8.1.00.0020.00517.45
8.0.300.0070.00018.77
8.0.290.0050.00317.04
8.0.280.0000.00718.44
8.0.270.0030.00316.80
8.0.260.0040.00417.25
8.0.250.0070.00016.99
8.0.240.0000.00716.96
8.0.230.0000.00716.94
8.0.220.0000.00816.83
8.0.210.0070.00016.79
8.0.200.0000.00716.88
8.0.190.0000.00716.83
8.0.180.0000.00716.84
8.0.170.0000.00716.85
8.0.160.0000.00716.87
8.0.150.0000.00816.74
8.0.140.0060.00316.68
8.0.130.0060.00013.26
8.0.120.0030.00516.76
8.0.110.0020.00516.76
8.0.100.0060.00316.88
8.0.90.0000.00716.71
8.0.80.0090.00616.77
8.0.70.0040.00416.93
8.0.60.0070.00016.71
8.0.50.0040.00416.75
8.0.30.0110.01317.01
8.0.20.0140.00517.40
8.0.10.0000.00716.81
8.0.00.0080.01016.73
7.4.330.0060.00015.04
7.4.320.0060.00016.48
7.4.300.0030.00316.54
7.4.290.0050.00316.50
7.4.280.0040.00416.29
7.4.270.0000.00816.43
7.4.260.0000.00716.40
7.4.250.0030.00516.46
7.4.240.0010.00616.44
7.4.230.0030.00316.31
7.4.220.0060.00916.46
7.4.210.0080.00616.41
7.4.200.0070.00016.26
7.4.190.0030.00316.66
7.4.160.0060.00916.50
7.4.150.0030.01617.40
7.4.140.0120.00817.86
7.4.130.0050.01116.52
7.4.120.0090.00916.44
7.4.110.0170.00416.45
7.4.100.0000.02016.46
7.4.90.0160.00716.57
7.4.80.0120.00919.39
7.4.70.0060.01316.47
7.4.60.0160.00316.37
7.4.50.0000.00816.52
7.4.40.0030.01316.46
7.4.30.0060.00916.30
7.4.00.0070.00714.84
7.3.330.0000.00613.02
7.3.320.0000.00612.93
7.3.310.0000.00716.32
7.3.300.0070.00016.22
7.3.290.0060.01216.30
7.3.280.0070.00916.21
7.3.270.0070.01117.40
7.3.260.0120.01216.50
7.3.250.0080.01216.43
7.3.240.0140.00416.25
7.3.230.0100.01316.39
7.3.210.0100.00716.19
7.3.200.0060.01019.39
7.3.190.0030.01916.44
7.3.180.0090.00616.20
7.3.170.0060.00916.27
7.3.160.0130.00316.31
7.3.120.0120.00315.02
7.3.10.0060.01215.78
7.3.00.0190.01615.96
7.2.330.0130.01016.53
7.2.320.0170.00316.33
7.2.310.0180.00416.57
7.2.300.0100.00716.62
7.2.290.0130.00616.71
7.2.130.0210.00416.27
7.2.120.0140.01116.34
7.2.110.0070.00716.18
7.2.100.0220.01316.63
7.2.90.0170.00716.28
7.2.80.0140.00716.31
7.2.70.0060.01016.50
7.2.60.0110.00916.64
7.2.50.0200.00416.71
7.2.40.0150.00316.52
7.2.30.0130.00316.51
7.2.20.0150.01016.39
7.2.10.0160.01016.95
7.2.00.0140.00718.10
7.1.250.0100.00515.49
7.1.200.0040.00815.68
7.1.100.0030.01417.91
7.1.70.0090.00617.28
7.1.60.0100.01019.46
7.1.50.0280.00734.81
7.1.00.0030.08022.36
7.0.200.0000.00916.68
7.0.140.0070.07022.00
7.0.90.0100.08021.67
7.0.80.0100.07321.79
7.0.70.0000.05021.70
7.0.60.0100.07021.74
7.0.50.0030.05322.01
7.0.40.0030.07320.04
7.0.30.0170.07020.16
7.0.20.0000.05320.10
7.0.10.0070.04320.04
7.0.00.0000.03720.15
5.6.280.0030.07320.78
5.6.240.0070.07720.68
5.6.230.0030.05020.68
5.6.220.0000.08720.74
5.6.210.0030.07020.62
5.6.200.0100.07721.05
5.6.190.0130.07321.09
5.6.180.0070.04320.96
5.6.170.0070.04721.12
5.6.160.0030.04021.06
5.6.150.0030.04021.00
5.6.140.0000.05321.01
5.6.130.0000.04321.03
5.6.120.0000.06321.04
5.6.110.0030.04021.05
5.6.100.0070.04321.04
5.6.90.0000.08321.06
5.6.80.0130.07020.50
5.6.70.0100.06020.43
5.6.60.0000.04020.37
5.6.50.0000.05720.49
5.6.40.0030.04720.36
5.6.30.0030.04020.39
5.6.20.0000.04320.43
5.6.10.0070.03320.39
5.6.00.0030.04020.36
5.5.380.0070.05020.48
5.5.370.0000.08320.35
5.5.360.0100.04720.44
5.5.350.0070.08020.34
5.5.340.0000.05720.91
5.5.330.0100.07020.84
5.5.320.0000.07320.93
5.5.310.0100.03720.73
5.5.300.0030.04020.87
5.5.290.0070.03720.77
5.5.280.0030.04020.64
5.5.270.0030.04020.85
5.5.260.0030.06320.82
5.5.250.0000.04720.71
5.5.240.0000.04020.21
5.5.230.0130.07720.24
5.5.220.0070.03720.21
5.5.210.0030.07720.25
5.5.200.0030.04720.00
5.5.190.0000.04020.26
5.5.180.0030.04720.18
5.5.160.0000.04020.16
5.5.150.0030.04320.27
5.5.140.0070.03320.21
5.5.130.0070.03320.12
5.5.120.0030.03720.23
5.5.110.0030.03720.21
5.5.100.0070.03720.07
5.5.90.0000.04020.15
5.5.80.0030.03719.95
5.5.70.0000.07320.08
5.5.60.0070.03320.02
5.5.50.0070.07320.06
5.5.40.0030.03720.14
5.5.30.0000.05320.05
5.5.20.0000.03720.05
5.5.10.0000.04320.05
5.5.00.0000.04020.05
5.4.450.0000.04019.56
5.4.440.0000.04019.43
5.4.430.0030.04019.36
5.4.420.0070.07319.36
5.4.410.0070.04319.31
5.4.400.0030.06319.05
5.4.390.0070.03318.90
5.4.380.0000.04019.12
5.4.370.0030.04019.03
5.4.360.0070.04718.90
5.4.350.0030.05319.10
5.4.340.0000.04318.83
5.4.320.0000.04019.14
5.4.310.0000.04318.90
5.4.300.0000.05719.04
5.4.290.0000.03718.82
5.4.280.0070.03318.81
5.4.270.0030.03719.24
5.4.260.0000.04318.95
5.4.250.0030.04318.94
5.4.240.0000.04018.89
5.4.230.0070.03319.09
5.4.220.0030.03719.24
5.4.210.0030.04718.87
5.4.200.0000.04018.97
5.4.190.0000.03718.80
5.4.180.0030.06019.11
5.4.170.0030.03319.09
5.4.160.0000.03018.92
5.4.150.0070.07719.07
5.4.140.0100.05316.38
5.4.130.0030.05316.37
5.4.120.0000.07016.37
5.4.110.0000.07716.20
5.4.100.0030.07016.40
5.4.90.0030.07016.26
5.4.80.0000.07716.39
5.4.70.0030.07016.42
5.4.60.0130.05716.19
5.4.50.0030.07016.19
5.4.40.0030.07316.41
5.4.30.0030.04716.18
5.4.20.0100.06316.18
5.4.10.0000.04316.18
5.4.00.0000.07015.74
5.3.290.0000.03714.67
5.3.280.0000.03714.55
5.3.270.0000.04014.60
5.3.260.0070.03014.57
5.3.250.0030.07314.60
5.3.240.0070.07314.44
5.3.230.0070.07314.60
5.3.220.0000.07314.54
5.3.210.0000.07714.39
5.3.200.0000.05714.57
5.3.190.0030.07314.48
5.3.180.0030.07714.50
5.3.170.0000.07314.55
5.3.160.0070.04714.51
5.3.150.0100.07014.54
5.3.140.0070.06014.54
5.3.130.0070.07714.55
5.3.120.0030.04314.51
5.3.110.0030.07714.39
5.3.100.0070.06713.85
5.3.90.0070.05013.87
5.3.80.0030.06714.02
5.3.70.0070.04713.95
5.3.60.0000.04314.01
5.3.50.0000.05013.91
5.3.40.0030.05713.95
5.3.30.0070.06713.77
5.3.20.0030.05713.60
5.3.10.0000.07313.41
5.3.00.0070.03313.59
5.2.170.0030.03010.93
5.2.160.0000.05711.16
5.2.150.0030.06310.93
5.2.140.0000.06310.97
5.2.130.0030.04011.09
5.2.120.0000.03310.91
5.2.110.0030.06010.95
5.2.100.0000.03711.09
5.2.90.0070.06010.89
5.2.80.0030.04010.89
5.2.70.0030.04311.04
5.2.60.0000.06311.04
5.2.50.0030.03010.98
5.2.40.0000.03310.84
5.2.30.0030.05710.96
5.2.20.0030.05310.95
5.2.10.0030.06010.86
5.2.00.0030.05710.66
5.1.60.0030.0439.98
5.1.50.0000.05710.00
5.1.40.0030.0479.99
5.1.30.0070.05310.39
5.1.20.0030.03310.42
5.1.10.0030.03010.08
5.1.00.0030.05310.05
5.0.50.0000.0478.57
5.0.40.0000.0438.46
5.0.30.0000.0678.22
5.0.20.0070.0408.18
5.0.10.0000.0478.00
5.0.00.0000.0638.26
4.4.90.0030.0237.22
4.4.80.0070.0137.22
4.4.70.0000.0377.22
4.4.60.0000.0337.22
4.4.50.0000.0277.22
4.4.40.0000.0577.22
4.4.30.0000.0277.22
4.4.20.0000.0207.22
4.4.10.0000.0277.22
4.4.00.0030.0537.22
4.3.110.0030.0337.22
4.3.100.0070.0277.22
4.3.90.0000.0337.22
4.3.80.0000.0307.22
4.3.70.0000.0177.22
4.3.60.0000.0177.22
4.3.50.0000.0377.22
4.3.40.0000.0607.22
4.3.30.0000.0377.22
4.3.20.0030.0137.22
4.3.10.0000.0177.22
4.3.00.0070.0277.22

preferences:
45.15 ms | 400 KiB | 5 Q