3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo json_encode(['ciao' => 'x', 'pippo' => 'pluto'], JSON_HEX_QUOT);

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)
8.3.40.0100.00718.62
8.3.30.0150.00018.69
8.3.20.0000.00818.57
8.3.10.0000.00821.05
8.3.00.0040.00423.53
8.2.170.0100.00322.96
8.2.160.0070.00720.35
8.2.150.0080.00024.18
8.2.140.0060.00324.66
8.2.130.0040.00426.16
8.2.120.0140.00321.07
8.2.110.0060.00320.38
8.2.100.0080.00317.59
8.2.90.0000.00919.22
8.2.80.0030.00619.40
8.2.70.0090.00317.25
8.2.60.0040.00417.80
8.2.50.0000.00818.07
8.2.40.0050.00318.09
8.2.30.0030.00319.39
8.2.20.0040.00417.45
8.2.10.0040.00417.53
8.2.00.0070.00017.53
8.1.270.0080.00023.99
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0060.00322.53
8.1.230.0060.00620.92
8.1.220.0000.00818.77
8.1.210.0050.00318.77
8.1.200.0000.00817.23
8.1.190.0060.00317.40
8.1.180.0000.00818.10
8.1.170.0050.00318.65
8.1.160.0040.00418.79
8.1.150.0000.00818.37
8.1.140.0000.00717.31
8.1.130.0000.00717.66
8.1.120.0000.00717.26
8.1.110.0000.00817.32
8.1.100.0050.00217.31
8.1.90.0040.00417.35
8.1.80.0040.00317.32
8.1.70.0030.00317.15
8.1.60.0060.00317.45
8.1.50.0040.00417.28
8.1.40.0040.00417.40
8.1.30.0000.00817.45
8.1.20.0040.00417.47
8.1.10.0040.00417.39
8.1.00.0050.00217.38
8.0.300.0070.00019.81
8.0.290.0000.00717.16
8.0.280.0070.00018.38
8.0.270.0070.00017.18
8.0.260.0060.00016.75
8.0.250.0060.00316.85
8.0.240.0040.00416.82
8.0.230.0040.00416.78
8.0.220.0030.00316.64
8.0.210.0000.00716.68
8.0.200.0030.00316.87
8.0.190.0000.00716.66
8.0.180.0040.00416.78
8.0.170.0000.00816.65
8.0.160.0030.00316.81
8.0.150.0000.00716.77
8.0.140.0070.00016.69
8.0.130.0000.00613.16
8.0.120.0040.00416.67
8.0.110.0030.00516.57
8.0.100.0000.00816.70
8.0.90.0070.00016.74
8.0.80.0090.00616.78
8.0.70.0000.00816.72
8.0.60.0000.00716.64
8.0.50.0000.00816.81
8.0.30.0090.00916.76
8.0.20.0170.00417.40
8.0.10.0070.00016.76
8.0.00.0110.01216.69
7.4.330.0060.00014.89
7.4.320.0080.00016.41
7.4.300.0060.00016.44
7.4.290.0040.00416.38
7.4.280.0000.00816.32
7.4.270.0030.00316.30
7.4.260.0030.00313.07
7.4.250.0000.00816.42
7.4.240.0050.00316.45
7.4.230.0030.00316.46
7.4.220.0120.00616.38
7.4.210.0080.00716.42
7.4.200.0070.00016.25
7.4.190.0000.00716.30
7.4.160.0140.00316.53
7.4.150.0120.00617.40
7.4.140.0130.00617.86
7.4.130.0080.00916.42
7.4.120.0090.00816.37
7.4.110.0100.00716.31
7.4.100.0170.00616.28
7.4.90.0110.01216.44
7.4.80.0060.01319.39
7.4.70.0150.00316.42
7.4.60.0090.00816.22
7.4.50.0030.00616.28
7.4.40.0030.00722.77
7.4.30.0070.01016.32
7.4.10.0090.00914.72
7.4.00.0120.00514.82
7.3.330.0000.00613.03
7.3.320.0000.00613.11
7.3.310.0000.00716.04
7.3.300.0000.00716.12
7.3.290.0100.00316.07
7.3.280.0060.00916.14
7.3.270.0060.01217.40
7.3.260.0130.00618.24
7.3.250.0130.00316.35
7.3.240.0100.00716.20
7.3.230.0140.00316.42
7.3.210.0000.01516.37
7.3.200.0130.01019.39
7.3.190.0070.01016.41
7.3.180.0110.00516.38
7.3.170.0030.01716.27
7.3.160.0110.00816.20
7.3.130.0040.01514.74
7.3.120.0080.00614.77
7.3.110.0040.01214.60
7.3.100.0030.00914.91
7.3.90.0120.00414.65
7.3.80.0030.01014.67
7.3.70.0040.01114.75
7.3.60.0100.00314.66
7.3.50.0030.01014.54
7.3.40.0070.00714.42
7.3.30.0060.01014.54
7.3.20.0140.00016.69
7.3.10.0140.00016.55
7.3.00.0030.00716.55
7.2.330.0090.00916.58
7.2.320.0090.00916.42
7.2.310.0090.01316.32
7.2.300.0100.00616.38
7.2.290.0080.00916.50
7.2.260.0060.01314.88
7.2.250.0070.00714.93
7.2.240.0030.01014.90
7.2.230.0070.01014.64
7.2.220.0100.00615.00
7.2.210.0000.01214.83
7.2.200.0030.01015.01
7.2.190.0090.00314.96
7.2.180.0070.01014.83
7.2.170.0060.00614.91
7.2.160.0060.00315.08
7.2.150.0030.01016.68
7.2.140.0070.01016.51
7.2.130.0090.00616.80
7.2.120.0060.00316.86
7.2.110.0000.01416.68
7.2.100.0030.00916.65
7.2.90.0070.00717.02
7.2.80.0030.00616.67
7.2.70.0060.00916.69
7.2.60.0060.01216.79
7.2.50.0060.00616.96
7.2.40.0030.00916.77
7.2.30.0070.00716.69
7.2.20.0030.00916.72
7.2.10.0060.00316.87
7.2.00.0050.00818.07
7.1.330.0060.00615.33
7.1.320.0070.01015.44
7.1.310.0090.00315.75
7.1.300.0030.00915.70
7.1.290.0060.00915.69
7.1.280.0040.00415.64
7.1.270.0060.00615.54
7.1.260.0030.01315.68
7.1.250.0130.00015.79
7.1.240.0000.01015.71
7.1.230.0030.00915.77
7.1.220.0040.00715.45
7.1.210.0060.00615.41
7.1.200.0070.00715.73
7.1.190.0090.00915.65
7.1.180.0100.00315.66
7.1.170.0040.00815.74
7.1.160.0080.00415.75
7.1.150.0090.00315.47
7.1.140.0090.00815.71
7.1.130.0060.00315.75
7.1.120.0080.00515.70
7.1.110.0000.01315.61
7.1.100.0030.01016.98
7.1.90.0070.00715.81
7.1.80.0030.01015.66
7.1.70.0080.00416.14
7.1.60.0050.00816.29
7.1.50.0080.01016.39
7.1.40.0040.00415.52
7.1.30.0030.00915.51
7.1.20.0030.00815.75
7.1.10.0030.01315.55
7.1.00.0050.03219.01
7.0.330.0000.01515.34
7.0.320.0070.00715.05
7.0.310.0090.00415.32
7.0.300.0030.00715.10
7.0.290.0000.00915.09
7.0.280.0040.00415.41
7.0.270.0040.00815.41
7.0.260.0060.00615.28
7.0.250.0040.00415.44
7.0.240.0110.00015.48
7.0.230.0030.01015.31
7.0.220.0080.00415.05
7.0.210.0030.00715.33
7.0.200.0070.00715.84
7.0.190.0090.00315.18
7.0.180.0000.00814.92
7.0.170.0030.01015.39
7.0.160.0070.00715.01
7.0.150.0040.00715.42
7.0.140.0060.03818.81
7.0.130.0030.00915.10
7.0.120.0070.00715.52
7.0.110.0060.00914.98
7.0.100.0040.00415.37
7.0.90.0120.05317.48
7.0.80.0080.04317.69
7.0.70.0050.03117.63
7.0.60.0050.02517.59
7.0.50.0070.02317.88
7.0.40.0040.02516.69
7.0.30.0070.02716.63
7.0.20.0070.02216.64
7.0.10.0050.02116.69
7.0.00.0050.02316.73
5.6.400.0030.01014.09
5.6.390.0040.00813.88
5.6.380.0100.00414.18
5.6.370.0100.00314.45
5.6.360.0040.01114.44
5.6.350.0030.00714.24
5.6.340.0030.01414.58
5.6.330.0090.00014.14
5.6.320.0060.00613.88
5.6.310.0080.00413.83
5.6.300.0110.00414.04
5.6.290.0030.01214.01
5.6.280.0040.04317.51
5.6.270.0030.01113.97
5.6.260.0030.00614.26
5.6.250.0070.00713.97
5.6.240.0060.03117.40
5.6.230.0080.03517.43
5.6.220.0000.03117.45
5.6.210.0070.02417.35
5.6.200.0050.02317.79
5.6.190.0050.02517.70
5.6.180.0050.04417.66
5.6.170.0030.03617.66
5.6.160.0070.03017.62
5.6.150.0060.02117.58
5.6.140.0070.03817.61
5.6.130.0050.02417.68
5.6.120.0030.02817.57
5.6.110.0090.02017.49
5.6.100.0030.02917.74
5.6.90.0050.02517.38
5.6.80.0070.02217.21
5.6.70.0050.02317.27
5.6.60.0080.02217.33
5.6.50.0060.02017.41
5.6.40.0060.02317.24
5.6.30.0040.02417.15
5.6.20.0100.02217.39
5.6.10.0060.02317.33
5.6.00.0070.02217.18
5.5.380.0050.03717.16
5.5.370.0080.04217.44
5.5.360.0050.02317.42
5.5.350.0080.02517.28
5.5.340.0050.02517.42
5.5.330.0040.02417.55
5.5.320.0040.02017.64
5.5.310.0020.02717.60
5.5.300.0050.02517.47
5.5.290.0040.02717.52
5.5.280.0070.02017.42
5.5.270.0020.03017.64
5.5.260.0090.02117.46
5.5.250.0070.02217.39
5.5.240.0000.03617.04
5.5.230.0050.02417.08
5.5.220.0030.02517.13
5.5.210.0070.02217.01
5.5.200.0080.01817.29
5.5.190.0060.03417.20
5.5.180.0050.02217.14
5.5.170.0070.00714.06
5.5.160.0030.03917.10
5.5.150.0090.02317.15
5.5.140.0050.02417.12
5.5.130.0110.04117.09
5.5.120.0000.02817.03
5.5.110.0080.04017.24
5.5.100.0070.04316.89
5.5.90.0060.03017.21
5.5.80.0130.03617.00
5.5.70.0080.04017.11
5.5.60.0110.02017.10
5.5.50.0010.03416.92
5.5.40.0070.03316.89
5.5.30.0020.03517.24
5.5.20.0030.02517.04
5.5.10.0080.04217.01
5.5.00.0000.02717.03
5.4.450.0050.02515.95
5.4.440.0000.02515.91
5.4.430.0070.02015.78
5.4.420.0020.02315.92
5.4.410.0080.01815.88
5.4.400.0010.02115.79
5.4.390.0070.02215.74
5.4.380.0080.02115.61
5.4.370.0050.02015.67
5.4.360.0020.02315.74
5.4.350.0020.02315.61
5.4.340.0040.02315.62
5.4.330.0040.00412.43
5.4.320.0070.02015.62
5.4.310.0070.04015.77
5.4.300.0050.04115.78
5.4.290.0020.03915.75
5.4.280.0080.03815.74
5.4.270.0080.02215.74
5.4.260.0050.02215.71
5.4.250.0070.02915.77
5.4.240.0050.03915.70
5.4.230.0040.03315.63
5.4.220.0030.04515.76
5.4.210.0080.03515.76
5.4.200.0070.04215.69
5.4.190.0080.03615.69
5.4.180.0030.04315.78
5.4.170.0070.03515.71
5.4.160.0000.04515.76
5.4.150.0050.02515.76
5.4.140.0050.04014.34
5.4.130.0050.03914.32
5.4.120.0030.02514.26
5.4.110.0080.02814.37
5.4.100.0060.02614.42
5.4.90.0050.02514.32
5.4.80.0050.03414.31
5.4.70.0030.04114.38
5.4.60.0090.02714.42
5.4.50.0030.03214.36
5.4.40.0050.03314.41
5.4.30.0030.02714.29
5.4.20.0080.03514.41
5.4.10.0070.02014.30
5.4.00.0050.03714.06
5.3.290.0060.03613.51
5.3.280.0080.03513.49
5.3.270.0070.03513.47
5.3.260.0010.02313.50
5.3.250.0030.04913.51
5.3.240.0050.04413.47
5.3.230.0060.03613.45
5.3.220.0100.03813.45
5.3.210.0030.03513.48
5.3.200.0040.02613.48
5.3.190.0120.03313.41
5.3.180.0070.03313.48
5.3.170.0080.03013.47
5.3.160.0000.04513.47
5.3.150.0060.03313.49
5.3.140.0090.03313.49
5.3.130.0050.03913.42
5.3.120.0060.02313.49
5.3.110.0070.03513.40
5.3.100.0050.03513.21
5.3.90.0020.04113.21
5.3.80.0070.02613.20
5.3.70.0030.03713.22
5.3.60.0000.02913.20
5.3.50.0030.03713.18
5.3.40.0070.03513.18
5.3.30.0050.03313.16
5.3.20.0060.03313.05
5.3.10.0030.02512.92
5.3.00.0110.03312.96
5.2.170.0030.04010.97
5.2.160.0100.05711.13
5.2.150.0030.05310.96
5.2.140.0030.04311.18
5.2.130.0070.05311.02
5.2.120.0100.05710.91
5.2.110.0000.03311.02
5.2.100.0100.02711.10
5.2.90.0030.03310.96
5.2.80.0000.04711.09
5.2.70.0130.05010.97
5.2.60.0030.07010.91
5.2.50.0070.04310.85
5.2.40.0170.05311.04
5.2.30.0000.03710.81
5.2.20.0030.03710.94
5.2.10.0030.02710.88
5.2.00.0070.02310.61
5.1.60.0030.02710.04
5.1.50.0100.04710.02
5.1.40.0100.04010.02
5.1.30.0030.03010.41
5.1.20.0000.04710.41
5.1.10.0000.06010.13
5.1.00.0070.04310.07
5.0.50.0070.0438.57
5.0.40.0030.0208.39
5.0.30.0000.0508.21
5.0.20.0070.0338.29
5.0.10.0000.0208.27
5.0.00.0030.0308.15
4.4.90.0000.0377.08
4.4.80.0030.0237.08
4.4.70.0030.0337.08
4.4.60.0000.0237.08
4.4.50.0000.0207.08
4.4.40.0070.0507.08
4.4.30.0030.0277.08
4.4.20.0070.0307.08
4.4.10.0030.0177.08
4.4.00.0000.0337.08
4.3.110.0070.0337.08
4.3.100.0030.0277.08
4.3.90.0030.0307.08
4.3.80.0100.0277.08
4.3.70.0000.0337.08
4.3.60.0000.0307.08
4.3.50.0000.0207.08
4.3.40.0000.0277.08
4.3.30.0000.0337.08
4.3.20.0030.0337.08
4.3.10.0030.0277.08
4.3.00.0000.0207.08

preferences:
38.5 ms | 400 KiB | 5 Q