3v4l.org

run code in 300+ PHP versions simultaneously
<?php //Source: https://bugs.php.net/bug.php?id=63898 $key = "Foo " . chr(163); $array = array($key => ""); print_r($array); ini_set('display_errors', 0); $json = json_encode($array); echo $json."\n"; print_r(json_decode($json));

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)
8.3.60.0130.00618.52
8.3.50.0130.00718.16
8.3.40.0070.00718.59
8.3.30.0000.01519.04
8.3.20.0050.00220.25
8.3.10.0040.00423.54
8.3.00.0080.00022.14
8.2.180.0070.00716.38
8.2.170.0000.01522.96
8.2.160.0140.00622.08
8.2.150.0040.00424.18
8.2.140.0050.00324.66
8.2.130.0080.00026.16
8.2.120.0080.00019.48
8.2.110.0060.00321.98
8.2.100.0110.00017.78
8.2.90.0070.00018.92
8.2.80.0030.00517.97
8.2.70.0000.00917.63
8.2.60.0040.00418.03
8.2.50.0040.00418.07
8.2.40.0080.00018.34
8.2.30.0000.01018.12
8.2.20.0040.00417.72
8.2.10.0040.00417.61
8.2.00.0080.00017.60
8.1.270.0030.00522.20
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0070.00323.84
8.1.230.0040.00719.04
8.1.220.0080.00017.78
8.1.210.0050.00318.77
8.1.200.0110.00017.36
8.1.190.0040.00417.53
8.1.180.0060.00318.10
8.1.170.0040.00418.59
8.1.160.0000.00721.98
8.1.150.0000.00718.57
8.1.140.0040.00417.30
8.1.130.0030.00317.75
8.1.120.0000.00817.41
8.1.110.0050.00317.39
8.1.100.0070.00017.41
8.1.90.0000.00717.42
8.1.80.0000.00717.35
8.1.70.0000.00717.27
8.1.60.0030.00617.53
8.1.50.0000.00717.36
8.1.40.0030.00617.44
8.1.30.0030.00517.52
8.1.20.0000.00817.41
8.1.10.0040.00417.46
8.1.00.0040.00417.38
8.0.300.0040.00418.77
8.0.290.0040.00417.05
8.0.280.0000.00718.39
8.0.270.0000.00817.30
8.0.260.0000.00816.77
8.0.250.0030.00316.96
8.0.240.0000.00716.85
8.0.230.0070.00016.84
8.0.220.0060.00316.88
8.0.210.0000.00816.93
8.0.200.0000.00716.95
8.0.190.0050.00216.93
8.0.180.0030.00316.81
8.0.170.0080.00016.89
8.0.160.0040.00416.83
8.0.150.0030.00316.82
8.0.140.0070.00016.84
8.0.130.0030.00313.24
8.0.120.0070.00016.84
8.0.110.0040.00416.71
8.0.100.0060.00316.79
8.0.90.0080.00016.91
8.0.80.0100.00716.90
8.0.70.0020.00516.87
8.0.60.0080.00017.00
8.0.50.0040.00416.82
8.0.30.0150.00417.03
8.0.20.0080.01117.40
8.0.10.0000.00816.74
8.0.00.0100.01016.75
7.4.330.0050.00015.07
7.4.320.0030.00316.41
7.4.300.0060.00016.42
7.4.290.0030.00316.39
7.4.280.0030.00316.35
7.4.270.0060.00016.38
7.4.260.0070.00016.51
7.4.250.0000.00816.50
7.4.240.0020.00516.47
7.4.230.0030.00316.59
7.4.220.0100.00716.45
7.4.210.0050.01216.54
7.4.200.0070.00016.59
7.4.190.0000.00716.69
7.4.160.0100.00616.40
7.4.150.0150.00317.40
7.4.140.0060.01317.86
7.4.130.0090.00816.47
7.4.120.0070.01216.46
7.4.110.0070.01016.41
7.4.100.0150.00316.57
7.4.90.0060.01316.37
7.4.80.0090.00616.60
7.4.70.0070.01016.41
7.4.60.0090.01116.38
7.4.50.0040.00416.42
7.4.40.0090.00622.77
7.4.30.0150.00616.27
7.4.00.0060.01214.88
7.3.330.0030.00313.04
7.3.320.0020.00213.18
7.3.310.0030.00316.27
7.3.300.0070.00016.24
7.3.290.0100.01016.22
7.3.280.0040.01216.22
7.3.270.0130.00417.40
7.3.260.0130.01316.28
7.3.250.0120.00516.47
7.3.240.0030.01316.60
7.3.230.0130.00316.42
7.3.210.0100.00616.40
7.3.200.0030.01619.39
7.3.190.0100.01316.38
7.3.180.0030.01216.56
7.3.170.0070.01016.43
7.3.160.0160.00616.31
7.3.120.0070.01014.85
7.3.110.0100.00714.62
7.3.100.0030.00614.46
7.3.90.0070.00714.75
7.3.80.0120.00314.75
7.3.70.0140.00714.87
7.3.60.0060.00914.90
7.3.50.0080.00414.77
7.3.40.0030.00714.84
7.3.30.0080.00314.75
7.3.20.0140.00016.33
7.3.10.0070.01116.63
7.3.00.0000.01416.66
7.2.330.0130.00716.44
7.2.320.0070.01416.75
7.2.310.0100.01016.66
7.2.300.0000.01616.68
7.2.290.0040.01216.58
7.2.250.0000.01515.15
7.2.240.0070.01414.81
7.2.230.0060.00615.07
7.2.220.0000.00915.01
7.2.210.0070.00715.03
7.2.200.0060.01514.97
7.2.190.0060.01014.77
7.2.180.0070.00715.13
7.2.170.0000.01814.78
7.2.60.0060.00617.09
7.2.00.0040.00819.32
7.1.330.0040.01115.76
7.1.320.0000.01315.54
7.1.310.0100.00315.80
7.1.300.0000.01415.66
7.1.290.0080.00415.89
7.1.280.0090.00315.84
7.1.270.0090.00615.63
7.1.260.0050.00515.95
7.1.200.0040.00715.80
7.1.100.0040.01118.37
7.1.70.0050.00317.09
7.1.60.0040.00717.25
7.1.50.0100.00616.86
7.1.00.0030.07322.46
7.0.200.0030.01016.65
7.0.140.0030.07322.15
7.0.90.0370.06019.86
7.0.80.0200.07019.88
7.0.70.0200.04020.07
7.0.60.0270.03719.96
7.0.50.0370.03720.35
7.0.40.0030.04320.13
7.0.30.0000.04019.92
7.0.20.0070.04020.19
7.0.10.0000.04320.18
7.0.00.0030.04020.14
5.6.280.0000.07721.14
5.6.240.0070.05720.63
5.6.230.0000.04320.47
5.6.220.0000.04320.43
5.6.210.0030.04320.54
5.6.200.0000.04721.04
5.6.190.0070.04021.04
5.6.180.0030.04020.98
5.6.170.0000.04321.04
5.6.160.0070.04021.08
5.6.150.0030.03721.04
5.6.140.0030.03720.93
5.6.130.0070.04020.90
5.6.120.0000.04721.04
5.6.110.0100.03721.01
5.6.100.0070.05321.05
5.6.90.0070.04020.90
5.6.80.0030.04020.32
5.6.70.0070.03720.39
5.6.60.0030.04020.46
5.6.50.0070.03720.43
5.6.40.0030.04720.36
5.6.30.0000.04320.45
5.6.20.0070.08020.30
5.6.10.0070.06320.45
5.6.00.0030.07720.46
5.5.380.0070.03720.29
5.5.370.0070.04020.43
5.5.360.0130.03320.47
5.5.350.0000.04320.27
5.5.340.0030.04320.82
5.5.330.0070.04320.91
5.5.320.0030.05020.93
5.5.310.0070.04320.73
5.5.300.0070.03320.75
5.5.290.0030.04720.91
5.5.280.0030.03720.85
5.5.270.0000.04320.87
5.5.260.0100.04020.87
5.5.250.0000.04020.72
5.5.240.0030.04020.20
5.5.230.0030.04020.26
5.5.220.0070.03020.12
5.5.210.0030.04020.20
5.5.200.0030.03720.21
5.5.190.0030.05320.23
5.5.180.0170.04719.98
5.5.160.0030.08020.07
5.5.150.0030.05720.23
5.5.140.0100.04020.23
5.5.130.0070.05320.17
5.5.120.0100.05719.97
5.5.110.0070.07720.22
5.5.100.0170.04719.94
5.5.90.0030.04720.14
5.5.80.0030.07719.96
5.5.70.0070.04720.11
5.5.60.0130.04320.14
5.5.50.0130.04020.04
5.5.40.0070.07720.10
5.5.30.0100.04020.04
5.5.20.0030.05320.01
5.5.10.0000.05320.12
5.5.00.0100.05020.02
5.4.450.0100.03319.29
5.4.440.0030.03319.11
5.4.430.0030.04019.38
5.4.420.0000.04319.35
5.4.410.0000.04719.29
5.4.400.0000.03718.79
5.4.390.0030.03719.07
5.4.380.0070.03319.07
5.4.370.0100.03018.96
5.4.360.0130.04319.16
5.4.350.0070.03319.08
5.4.340.0030.05319.03
5.4.320.0100.05018.96
5.4.310.0070.07319.11
5.4.300.0070.07718.90
5.4.290.0200.06718.97
5.4.280.0100.07318.78
5.4.270.0170.06719.12
5.4.260.0070.04719.05
5.4.250.0030.07718.80
5.4.240.0070.04318.97
5.4.230.0100.07319.04
5.4.220.0070.05319.22
5.4.210.0100.03319.11
5.4.200.0030.06018.89
5.4.190.0030.06319.10
5.4.180.0070.07019.08
5.4.170.0030.06718.87
5.4.160.0030.04319.07
5.4.150.0130.07318.95
5.4.140.0030.05716.28
5.4.130.0100.06316.23
5.4.120.0100.07316.22
5.4.110.0030.07316.21
5.4.100.0100.03716.34
5.4.90.0030.05016.30
5.4.80.0070.05316.36
5.4.70.0000.05016.25
5.4.60.0070.05716.29
5.4.50.0070.07316.38
5.4.40.0070.07316.23
5.4.30.0130.06716.23
5.4.20.0070.03716.22
5.4.10.0130.06716.27
5.4.00.0130.06715.84
5.3.290.0000.08014.61
5.3.280.0030.07014.54
5.3.270.0000.08314.46
5.3.260.0070.04314.47
5.3.250.0070.07714.46
5.3.240.0100.04014.60
5.3.230.0070.08014.56
5.3.220.0030.05314.41
5.3.210.0170.07714.56
5.3.200.0000.05014.53
5.3.190.0030.07714.51
5.3.180.0100.07014.43
5.3.170.0070.07014.42
5.3.160.0130.06714.50
5.3.150.0070.04314.54
5.3.140.0070.06314.55
5.3.130.0070.07314.51
5.3.120.0070.06714.40
5.3.110.0030.04014.50
5.3.100.0130.07013.95
5.3.90.0100.06313.99
5.3.80.0000.05013.79
5.3.70.0070.07713.88
5.3.60.0070.04313.99
5.3.50.0000.08013.93
5.3.40.0070.06013.87
5.3.30.0070.06313.87
5.3.20.0030.06313.68
5.3.10.0000.08013.65
5.3.00.0030.06313.62
5.2.170.0000.04711.15
5.2.160.0030.06311.18
5.2.150.0000.03311.13
5.2.140.0000.04010.98
5.2.130.0000.03311.14
5.2.120.0070.06011.17
5.2.110.0000.06711.05
5.2.100.0030.06011.14
5.2.90.0100.03311.02
5.2.80.0100.02710.93
5.2.70.0000.03311.13
5.2.60.0070.06311.09
5.2.50.0000.05010.97
5.2.40.0030.06310.81
5.2.30.0000.03710.98
5.2.20.0000.04710.95
5.2.10.0070.05310.99
5.2.00.0070.06310.76
5.1.60.0030.05310.05
5.1.50.0070.04710.07
5.1.40.0030.04710.05
5.1.30.0070.05710.39
5.1.20.0070.05310.44
5.1.10.0030.05010.15
5.1.00.0000.03310.05
5.0.50.0000.0308.57
5.0.40.0100.0178.46
5.0.30.0000.0638.30
5.0.20.0000.0478.18
5.0.10.0000.0278.22
5.0.00.0100.0578.23
4.4.90.0030.0336.85
4.4.80.0000.0376.85
4.4.70.0030.0236.85
4.4.60.0070.0306.85
4.4.50.0030.0376.85
4.4.40.0030.0376.85
4.4.30.0030.0306.85
4.4.20.0000.0376.85
4.4.10.0070.0136.85
4.4.00.0000.0576.85
4.3.110.0100.0136.85
4.3.100.0070.0236.85
4.3.90.0030.0336.85
4.3.80.0000.0536.85
4.3.70.0100.0276.85
4.3.60.0030.0306.85
4.3.50.0000.0376.85
4.3.40.0070.0436.85
4.3.30.0000.0336.85
4.3.20.0030.0276.85
4.3.10.0000.0236.85
4.3.00.0000.0236.85

preferences:
71.74 ms | 400 KiB | 5 Q