3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array( '0' => array('xxx'), '1' => array('aaa'), '2' => array('bbb'), ); unset($arr['0']); print_r(json_encode($arr));

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)
8.3.60.0180.00018.31
8.3.50.0140.00621.99
8.3.40.0000.01418.70
8.3.30.0100.01019.04
8.3.20.0000.00820.38
8.3.10.0050.00320.35
8.3.00.0090.00019.38
8.2.180.0090.01316.50
8.2.170.0120.00322.96
8.2.160.0110.00420.53
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0040.00422.06
8.2.110.0080.00320.27
8.2.100.0050.00617.78
8.2.90.0000.00819.23
8.2.80.0050.00317.97
8.2.70.0080.00017.60
8.2.60.0080.00517.66
8.2.50.0040.00418.07
8.2.40.0040.00418.16
8.2.30.0000.00819.33
8.2.20.0030.00517.55
8.2.10.0050.00318.00
8.2.00.0030.00517.53
8.1.280.0180.00425.92
8.1.270.0080.00021.99
8.1.260.0070.00026.35
8.1.250.0000.00728.09
8.1.240.0030.00723.73
8.1.230.0030.00923.96
8.1.220.0080.00017.74
8.1.210.0060.00318.77
8.1.200.0070.00317.23
8.1.190.0040.00417.10
8.1.180.0030.00518.10
8.1.170.0060.00318.59
8.1.160.0060.00321.95
8.1.150.0050.00218.82
8.1.140.0080.00017.29
8.1.130.0030.00317.74
8.1.120.0070.00017.39
8.1.110.0030.00317.27
8.1.100.0030.00517.27
8.1.90.0000.00717.30
8.1.80.0000.00717.39
8.1.70.0000.00717.29
8.1.60.0030.00617.52
8.1.50.0050.00317.42
8.1.40.0000.00817.46
8.1.30.0080.00017.66
8.1.20.0040.00417.54
8.1.10.0040.00417.35
8.1.00.0040.00417.45
8.0.300.0040.00418.77
8.0.290.0050.00216.63
8.0.280.0030.00318.38
8.0.270.0040.00417.13
8.0.260.0000.00717.19
8.0.250.0000.00716.79
8.0.240.0000.00716.93
8.0.230.0040.00416.86
8.0.220.0000.00816.71
8.0.210.0040.00416.70
8.0.200.0050.00316.78
8.0.190.0040.00416.91
8.0.180.0040.00416.70
8.0.170.0090.00016.78
8.0.160.0040.00416.81
8.0.150.0030.00316.82
8.0.140.0040.00416.75
8.0.130.0050.00013.18
8.0.120.0040.00416.79
8.0.110.0000.00916.72
8.0.100.0000.00716.67
8.0.90.0000.00716.88
8.0.80.0060.01016.82
8.0.70.0040.00416.65
8.0.60.0000.00716.89
8.0.50.0040.00416.70
8.0.30.0150.00416.96
8.0.20.0120.00617.40
8.0.10.0030.00616.89
8.0.00.0080.01016.64
7.4.330.0000.00515.00
7.4.320.0000.00616.58
7.4.300.0060.00016.63
7.4.290.0000.00616.39
7.4.280.0050.00216.48
7.4.270.0030.00316.59
7.4.260.0040.00416.52
7.4.250.0040.00416.57
7.4.240.0030.00516.53
7.4.230.0040.00416.70
7.4.220.0090.00916.64
7.4.210.0120.00316.60
7.4.200.0030.00316.48
7.4.160.0090.00616.37
7.4.150.0120.00617.40
7.4.140.0080.01017.86
7.4.130.0070.01016.49
7.4.120.0100.00716.41
7.4.110.0090.01216.65
7.4.100.0030.01216.37
7.4.90.0100.01016.43
7.4.80.0110.00619.37
7.4.70.0080.00816.50
7.4.60.0070.01316.52
7.4.50.0040.00416.37
7.4.40.0070.01016.50
7.4.30.0060.00916.43
7.4.00.0040.01214.83
7.3.330.0070.00013.12
7.3.320.0050.00013.08
7.3.310.0030.00316.13
7.3.300.0030.00516.09
7.3.290.0100.01016.16
7.3.280.0080.00916.19
7.3.270.0110.00717.40
7.3.260.0150.00316.44
7.3.250.0090.01016.19
7.3.240.0060.01216.25
7.3.230.0120.00616.39
7.3.210.0090.00616.29
7.3.200.0100.01019.39
7.3.190.0060.01116.43
7.3.180.0120.00416.22
7.3.170.0060.01316.48
7.3.160.0110.01416.30
7.3.120.0000.01314.69
7.3.110.0100.00714.47
7.3.100.0100.00714.76
7.3.90.0100.00714.45
7.3.80.0030.01014.67
7.3.70.0060.00614.74
7.3.60.0060.01014.89
7.3.50.0070.00714.84
7.3.40.0000.00814.70
7.3.30.0070.00714.82
7.3.20.0030.00616.48
7.3.10.0080.00916.52
7.3.00.0130.00916.34
7.2.330.0100.00716.37
7.2.320.0100.00716.18
7.2.310.0100.01316.35
7.2.300.0070.01716.29
7.2.290.0050.01116.59
7.2.250.0110.00815.12
7.2.240.0070.01315.14
7.2.230.0160.00015.07
7.2.220.0000.01715.07
7.2.210.0060.00614.97
7.2.200.0060.00914.59
7.2.190.0080.00414.62
7.2.180.0090.00615.03
7.2.170.0110.00314.63
7.2.130.0090.00616.22
7.2.120.0120.00416.33
7.2.110.0110.00916.37
7.2.100.0060.00616.41
7.2.90.0120.00816.45
7.2.80.0040.00816.38
7.2.70.0050.00716.52
7.2.60.0070.00816.82
7.2.50.0070.00316.73
7.2.40.0040.00816.77
7.2.30.0020.00916.41
7.2.20.0090.00416.75
7.2.10.0100.00816.80
7.2.00.0060.00716.58
7.1.330.0100.00715.90
7.1.320.0030.01015.71
7.1.310.0030.01415.81
7.1.300.0000.01315.80
7.1.290.0060.00915.67
7.1.280.0080.00615.52
7.1.270.0080.00315.77
7.1.260.0030.00715.87
7.1.250.0150.00015.48
7.1.230.0090.00015.71
7.1.220.0070.00315.73
7.1.210.0030.01015.91
7.1.200.0040.00615.75
7.1.190.0000.01115.48
7.1.180.0000.01215.97
7.1.170.0000.01215.89
7.1.160.0070.00315.88
7.1.150.0070.00315.60
7.1.140.0100.00315.73
7.1.130.0100.00315.87
7.1.120.0070.00715.90
7.1.110.0030.01015.52
7.1.100.0030.00715.78
7.1.90.0030.01015.87
7.1.80.0090.00315.70
7.1.70.0020.00816.45
7.1.60.0070.01317.61
7.1.50.0080.00916.36
7.1.40.0090.00315.85
7.1.30.0040.01415.86
7.1.20.0000.01415.64
7.1.10.0040.00715.92
7.1.00.0100.03519.09
7.0.310.0090.00315.45
7.0.300.0080.00315.30
7.0.290.0080.00315.19
7.0.280.0100.00315.40
7.0.270.0030.01015.49
7.0.260.0060.00615.13
7.0.250.0040.00815.34
7.0.240.0090.00615.21
7.0.230.0000.00915.16
7.0.220.0090.00615.48
7.0.210.0100.00315.12
7.0.200.0070.00716.02
7.0.190.0000.01315.41
7.0.180.0070.00415.39
7.0.170.0030.00615.23
7.0.160.0000.01115.48
7.0.150.0070.00315.45
7.0.140.0020.04518.67
7.0.130.0040.00715.57
7.0.120.0070.00315.38
7.0.110.0030.00715.41
7.0.100.0110.00015.09
7.0.90.0350.04217.65
7.0.80.0400.04017.69
7.0.70.0320.03517.61
7.0.60.0330.04317.79
7.0.50.0030.04817.77
7.0.40.0100.04016.75
7.0.30.0110.04216.70
7.0.20.0090.04516.85
7.0.10.0070.04316.84
7.0.00.0020.03416.79
5.6.380.0060.00614.54
5.6.370.0030.00614.46
5.6.360.0080.00014.43
5.6.350.0060.00614.22
5.6.340.0070.00314.18
5.6.330.0080.00014.26
5.6.320.0060.00314.56
5.6.310.0040.00414.19
5.6.300.0000.00714.54
5.6.290.0040.00814.55
5.6.280.0070.03517.70
5.6.270.0060.00614.23
5.6.260.0030.00614.39
5.6.250.0040.01114.20
5.6.240.0090.04317.50
5.6.230.0070.04017.32
5.6.220.0090.04217.38
5.6.210.0100.04017.51
5.6.200.0100.03517.64
5.6.190.0070.03017.45
5.6.180.0100.04217.68
5.6.170.0050.04717.61
5.6.160.0030.03917.50
5.6.150.0080.04317.75
5.6.140.0070.04317.50
5.6.130.0070.04317.63
5.6.120.0010.03317.72
5.6.110.0020.04617.57
5.6.100.0130.03317.74
5.6.90.0130.02317.55
5.6.80.0100.02617.20
5.6.70.0050.02817.16
5.6.60.0110.03717.21
5.6.50.0050.03017.28
5.6.40.0090.03017.31
5.6.30.0020.04517.25
5.6.20.0140.03317.40
5.6.10.0120.03617.10
5.6.00.0030.03017.14
5.5.380.0070.03715.75
5.5.370.0050.04015.78
5.5.360.0020.02715.71
5.5.350.0040.02315.66
5.5.340.0050.03015.96
5.5.330.0080.04315.80
5.5.320.0110.03215.95
5.5.310.0010.02815.95
5.5.300.0040.04316.00
5.5.290.0020.04315.94
5.5.280.0030.04116.05
5.5.270.0070.02516.06
5.5.260.0060.04315.72
5.5.250.0080.03215.77
5.5.240.0070.02715.70
5.5.230.0080.04015.52
5.5.220.0100.03215.66
5.5.210.0070.03915.53
5.5.200.0020.02515.56
5.5.190.0060.02515.55
5.5.180.0020.04715.47
5.5.170.0050.00214.31
5.5.160.0030.04315.57
5.5.150.0030.04315.46
5.5.140.0040.03815.60
5.5.130.0080.02715.59
5.5.120.0080.03715.71
5.5.110.0020.02915.61
5.5.100.0030.04315.53
5.5.90.0060.02215.60
5.5.80.0050.02015.37
5.5.70.0070.03915.51
5.5.60.0050.02315.47
5.5.50.0060.01815.56
5.5.40.0030.01815.42
5.5.30.0030.02115.57
5.5.20.0060.01915.55
5.5.10.0030.02115.55
5.5.00.0030.02215.32
5.4.450.0030.02215.21
5.4.440.0080.04015.03
5.4.430.0030.04315.12
5.4.420.0120.02215.24
5.4.410.0050.03214.95
5.4.400.0060.02314.84
5.4.390.0070.03614.81
5.4.380.0070.03815.06
5.4.370.0050.03214.91
5.4.360.0030.02315.01
5.4.350.0080.03314.92
5.4.340.0020.03414.99
5.4.330.0050.00510.82
5.4.320.0080.03714.95
5.4.310.0030.02814.86
5.4.300.0050.03314.93
5.4.290.0040.03815.12
5.4.280.0030.04514.80
5.4.270.0060.03515.04
5.4.260.0030.02214.96
5.4.250.0030.03514.96
5.4.240.0050.02915.17
5.4.230.0120.02514.89
5.4.220.0050.02414.90
5.4.210.0030.02214.96
5.4.200.0080.01814.96
5.4.190.0020.02414.97
5.4.180.0020.02214.95
5.4.170.0000.02414.96
5.4.160.0070.01814.83
5.4.150.0070.01814.96
5.4.140.0050.03013.80
5.4.130.0000.02413.66
5.4.120.0020.02113.58
5.4.110.0030.02213.53
5.4.100.0070.01513.52
5.4.90.0060.02613.49
5.4.80.0000.02313.65
5.4.70.0020.02213.58
5.4.60.0050.01813.45
5.4.50.0090.02513.64
5.4.40.0030.02613.71
5.4.30.0030.02013.54
5.4.20.0020.02313.51
5.4.10.0060.01913.72
5.4.00.0060.01713.29
5.3.290.0030.04012.50
5.3.280.0060.02112.38
5.3.270.0050.02012.53
5.3.260.0000.02612.48
5.3.250.0020.02212.38
5.3.240.0060.03012.39
5.3.230.0090.01712.41
5.3.220.0050.01812.54
5.3.210.0030.02412.52
5.3.200.0050.01912.54
5.3.190.0040.01912.52
5.3.180.0040.01812.42
5.3.170.0020.02312.54
5.3.160.0030.02112.39
5.3.150.0020.02112.54
5.3.140.0040.01912.55
5.3.130.0070.01812.51
5.3.120.0000.02312.51
5.3.110.0000.02112.45
5.3.100.0030.01812.18
5.3.90.0030.02012.06
5.3.80.0020.01812.02
5.3.70.0050.02012.13
5.3.60.0030.02212.23
5.3.50.0040.02012.04
5.3.40.0030.02612.03
5.3.30.0030.02112.12
5.3.20.0060.01812.07
5.3.10.0030.01811.98
5.3.00.0020.02011.90
5.2.170.0030.01410.24
5.2.160.0020.01810.32
5.2.150.0050.01510.34
5.2.140.0020.01910.30
5.2.130.0020.01610.17
5.2.120.0020.01710.30
5.2.110.0020.01610.29
5.2.100.0030.03510.08
5.2.90.0040.01510.13
5.2.80.0000.02210.04
5.2.70.0030.01810.03
5.2.60.0020.01610.14
5.2.50.0030.02210.20
5.2.40.0040.02010.16
5.2.30.0040.01510.05
5.2.20.0040.0159.96
5.2.10.0020.0179.86
5.2.00.0040.0259.96
5.1.60.0030.0159.25
5.1.50.0050.0129.18
5.1.40.0000.0299.28
5.1.30.0040.0129.31
5.1.20.0000.0169.49
5.1.10.0010.0159.23
5.1.00.0000.0169.26
5.0.50.0050.0178.38
5.0.40.0020.0128.43
5.0.30.0000.0368.24
5.0.20.0050.0188.29
5.0.10.0070.0188.19
5.0.00.0060.0258.26
4.4.90.0020.0107.69
4.4.80.0030.0107.69
4.4.70.0000.0117.69
4.4.60.0020.0087.69
4.4.50.0010.0107.69
4.4.40.0030.0127.69
4.4.30.0010.0167.69
4.4.20.0020.0107.69
4.4.10.0020.0087.69
4.4.00.0000.0147.69
4.3.110.0030.0177.69
4.3.100.0020.0137.69
4.3.90.0020.0177.69
4.3.80.0030.0287.69
4.3.70.0000.0157.69
4.3.60.0010.0187.69
4.3.50.0020.0187.69
4.3.40.0000.0287.69
4.3.30.0030.0207.69
4.3.20.0040.0177.69
4.3.10.0030.0127.69
4.3.00.0080.0127.69

preferences:
44.71 ms | 401 KiB | 5 Q