3v4l.org

run code in 300+ PHP versions simultaneously
<?php $books = array( 0 => 'BBook', 1 => 'ABook', 2 => 'BBook', ); $rbooks = array_flip($books); var_dump($rbooks );

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)
8.3.40.0150.00618.67
8.3.30.0100.00319.09
8.3.20.0040.00420.21
8.3.10.0080.00023.66
8.3.00.0000.00818.89
8.2.170.0110.00322.96
8.2.160.0120.00320.46
8.2.150.0030.00524.18
8.2.140.0050.00324.66
8.2.130.0070.00026.16
8.2.120.0040.00420.61
8.2.110.0030.00621.96
8.2.100.0040.00819.51
8.2.90.0000.00819.23
8.2.80.0050.00317.97
8.2.70.0060.00317.50
8.2.60.0050.00317.92
8.2.50.0030.00618.07
8.2.40.0060.00321.18
8.2.30.0030.00518.16
8.2.20.0000.00717.71
8.2.10.0040.00418.07
8.2.00.0000.00717.67
8.1.270.0090.00023.84
8.1.260.0080.00026.35
8.1.250.0080.00028.09
8.1.240.0030.00622.25
8.1.230.0070.00419.17
8.1.220.0030.00617.74
8.1.210.0080.00018.77
8.1.200.0030.00617.36
8.1.190.0000.01017.00
8.1.180.0060.00318.10
8.1.170.0080.00018.49
8.1.160.0030.00521.85
8.1.150.0040.00418.48
8.1.140.0000.00817.29
8.1.130.0070.00017.82
8.1.120.0040.00417.30
8.1.110.0050.00217.35
8.1.100.0000.00817.38
8.1.90.0050.00217.27
8.1.80.0000.00717.45
8.1.70.0030.00317.34
8.1.60.0040.00417.55
8.1.50.0030.00617.28
8.1.40.0090.00317.45
8.1.30.0080.00017.58
8.1.20.0040.00417.61
8.1.10.0030.00617.45
8.1.00.0030.00517.43
8.0.300.0050.00318.77
8.0.290.0040.00417.05
8.0.280.0040.00418.37
8.0.270.0030.00317.19
8.0.260.0070.00017.19
8.0.250.0030.00316.88
8.0.240.0070.00016.93
8.0.230.0080.00016.79
8.0.220.0030.00316.87
8.0.210.0000.00716.83
8.0.200.0000.00716.92
8.0.190.0070.00016.77
8.0.180.0040.00416.80
8.0.170.0040.00416.83
8.0.160.0000.00716.83
8.0.150.0030.00716.77
8.0.140.0040.00416.73
8.0.130.0000.00813.21
8.0.120.0000.00816.79
8.0.110.0070.00016.85
8.0.100.0070.00016.72
8.0.90.0040.00416.83
8.0.80.0090.01216.78
8.0.70.0050.00316.86
8.0.60.0000.00716.62
8.0.50.0040.00416.78
8.0.30.0090.01016.88
8.0.20.0070.01217.40
8.0.10.0000.00716.92
8.0.00.0100.01016.49
7.4.330.0000.00715.00
7.4.320.0070.00016.36
7.4.300.0030.00316.45
7.4.290.0030.00316.46
7.4.280.0000.00716.54
7.4.270.0020.00516.46
7.4.260.0000.00716.41
7.4.250.0000.00816.36
7.4.240.0040.00416.55
7.4.230.0070.00016.61
7.4.220.0120.00616.31
7.4.210.0070.01016.57
7.4.200.0040.00416.43
7.4.190.0030.00316.68
7.4.160.0030.01916.41
7.4.150.0060.01217.40
7.4.140.0140.00717.86
7.4.130.0110.00716.43
7.4.120.0110.00916.44
7.4.110.0130.00916.29
7.4.100.0150.00916.34
7.4.90.0150.00316.22
7.4.80.0120.00419.39
7.4.70.0090.00916.35
7.4.60.0100.00616.43
7.4.50.0040.00016.21
7.4.40.0140.00316.52
7.4.30.0060.01016.53
7.4.00.0060.00615.04
7.3.330.0000.00612.98
7.3.320.0050.00012.98
7.3.310.0030.00516.07
7.3.300.0070.00016.13
7.3.290.0070.01016.20
7.3.280.0090.00616.16
7.3.270.0080.00817.40
7.3.260.0180.00016.30
7.3.250.0070.01216.31
7.3.240.0070.01016.04
7.3.230.0100.00616.39
7.3.210.0100.00716.18
7.3.200.0110.00619.39
7.3.190.0110.01116.12
7.3.180.0170.00016.17
7.3.170.0090.00816.27
7.3.160.0060.00916.20
7.3.120.0070.01014.59
7.3.10.0080.00016.22
7.3.00.0060.00716.22
7.2.330.0070.01016.30
7.2.320.0110.01116.28
7.2.310.0110.00716.27
7.2.300.0060.01116.55
7.2.290.0090.00916.39
7.2.130.0100.00516.43
7.2.120.0030.01016.66
7.2.110.0020.01116.71
7.2.100.0030.01016.73
7.2.90.0080.00316.78
7.2.80.0060.00416.72
7.2.70.0050.00616.69
7.2.60.0080.00516.81
7.2.50.0050.01116.59
7.2.40.0060.00516.76
7.2.30.0050.00816.77
7.2.20.0040.00716.79
7.2.10.0040.00916.66
7.2.00.0060.00617.52
7.1.250.0110.00515.58
7.1.240.0040.00415.75
7.1.230.0040.00815.88
7.1.220.0080.00315.70
7.1.210.0070.00715.47
7.1.200.0070.00715.67
7.1.190.0060.00615.56
7.1.180.0060.00915.78
7.1.170.0000.01415.69
7.1.160.0000.01315.64
7.1.150.0150.00015.60
7.1.140.0100.00615.48
7.1.130.0030.00615.58
7.1.120.0030.00915.66
7.1.110.0030.00615.51
7.1.100.0060.00516.69
7.1.90.0030.00715.45
7.1.80.0100.00715.25
7.1.70.0040.00616.19
7.1.60.0060.01017.51
7.1.50.0030.01015.97
7.1.40.0040.00415.69
7.1.30.0040.00715.45
7.1.20.0110.00315.49
7.1.10.0040.00415.48
7.1.00.0020.04619.06
7.0.330.0000.01115.09
7.0.320.0060.00315.23
7.0.310.0060.00315.27
7.0.300.0040.00715.09
7.0.290.0070.00715.14
7.0.280.0090.00015.14
7.0.270.0090.00914.99
7.0.260.0070.00314.73
7.0.250.0070.00315.02
7.0.240.0060.00315.21
7.0.230.0000.01515.00
7.0.220.0080.00315.14
7.0.210.0030.00515.26
7.0.200.0060.00615.91
7.0.190.0060.00615.20
7.0.180.0000.01014.92
7.0.170.0090.00015.09
7.0.160.0030.00915.01
7.0.150.0000.01114.73
7.0.140.0040.02618.70
7.0.130.0050.00514.98
7.0.120.0090.00915.30
7.0.110.0000.01214.93
7.0.100.0080.00015.11
7.0.90.0030.00915.13
7.0.80.0070.00415.15
7.0.70.0030.00615.24
7.0.60.0100.04317.67
7.0.50.0020.03516.73
7.0.40.0020.02816.84
7.0.30.0300.02616.88
7.0.20.0100.02516.71
7.0.10.0140.02216.64
7.0.00.0070.03216.70
5.6.380.0090.00614.00
5.6.370.0070.00714.41
5.6.360.0060.00614.01
5.6.350.0000.01013.75
5.6.340.0000.01413.79
5.6.330.0100.00013.60
5.6.320.0000.01213.73
5.6.310.0000.01113.70
5.6.300.0030.00913.63
5.6.290.0030.01013.61
5.6.280.0090.00314.12
5.6.270.0040.00813.85
5.6.260.0060.00313.72
5.6.250.0030.00813.88
5.6.240.0030.00613.68
5.6.230.0060.00613.77
5.6.220.0060.00613.94
5.6.210.0090.03917.18
5.6.200.0060.04616.20
5.6.190.0030.05217.28
5.6.180.1670.02517.14
5.6.170.0150.02517.28
5.6.160.0030.02717.20
5.6.150.0030.03116.14
5.6.140.0030.02516.05
5.6.130.0120.02316.04
5.6.120.0100.04317.53
5.6.110.0050.04717.70
5.6.100.0120.04217.37
5.6.90.0070.02217.73
5.6.80.0070.04017.18
5.6.70.0070.02017.18
5.6.60.0070.00314.00
5.6.50.0030.00713.62
5.6.40.0000.01114.05
5.6.30.0000.01113.71
5.6.20.0030.00913.86
5.6.10.0040.00714.05
5.6.00.0060.00913.89
5.5.380.0000.01110.90
5.5.370.0000.00710.90
5.5.360.0030.00510.90
5.5.350.0170.03215.66
5.5.340.0050.02614.46
5.5.330.0070.03915.57
5.5.320.0150.04415.63
5.5.310.0060.02615.58
5.5.300.0050.02114.43
5.5.290.0030.03914.41
5.5.280.0020.04915.88
5.5.270.0060.03515.83
5.5.260.0080.04215.90
5.5.250.0100.03915.75
5.5.240.0030.04315.63
5.5.230.0000.00711.09
5.5.220.0040.00410.90
5.5.210.0000.00910.90
5.5.200.0030.00610.90
5.5.190.0030.00310.95
5.5.180.0000.00610.90
5.5.170.0040.00710.90
5.5.160.0040.00410.95
5.5.150.0080.00010.90
5.5.140.0000.01110.90
5.5.130.0000.00710.90
5.5.120.0030.00310.90
5.5.110.0030.00310.90
5.5.100.0000.00710.90
5.5.90.0030.00310.90
5.5.80.0000.01310.90
5.5.70.0030.00310.90
5.5.60.0000.00810.90
5.5.50.0100.00010.94
5.5.40.0060.00310.91
5.5.30.0040.00410.90
5.5.20.0080.00010.90
5.5.10.0000.00810.90
5.5.00.0040.00410.90
5.4.450.0320.03415.02
5.4.440.0080.03114.98
5.4.430.0090.02915.21
5.4.420.0320.00415.26
5.4.410.0080.03414.85
5.4.400.0120.02614.70
5.4.390.0150.02314.80
5.4.380.0150.02714.79
5.4.370.0140.01514.71
5.4.360.0050.02114.76
5.4.350.0070.02311.44
5.4.340.0060.01911.43
5.4.330.0000.00610.97
5.4.320.0060.02111.68
5.4.310.0040.02111.68
5.4.300.0020.02411.68
5.4.290.0110.01911.67
5.4.280.0050.02011.62
5.4.270.0060.02111.62
5.4.260.0060.02111.62
5.4.250.0040.02311.62
5.4.240.0080.01811.62
5.4.230.0030.02611.62
5.4.220.0060.02511.62
5.4.210.0080.02011.62
5.4.200.0070.02111.62
5.4.190.0100.01711.62
5.4.180.0030.02311.64
5.4.170.0040.02311.62
5.4.160.0040.02011.62
5.4.150.0050.02011.62
5.4.140.0020.02311.46
5.4.130.0020.02311.45
5.4.120.0040.02311.43
5.4.110.0070.02011.43
5.4.100.0060.01811.43
5.4.90.0030.02411.43
5.4.80.0070.02111.43
5.4.70.0020.02311.43
5.4.60.0040.02111.43
5.4.50.0050.02011.43
5.4.40.0050.01911.42
5.4.30.0040.02311.42
5.4.20.0040.02011.42
5.4.10.0070.01911.42
5.4.00.0060.02411.17
5.3.290.0040.02511.85
5.3.280.0040.02311.80
5.3.270.0060.02211.81
5.3.260.0040.02711.81
5.3.250.0070.02811.81
5.3.240.0050.02911.81
5.3.230.0050.02411.80
5.3.220.0040.02111.79
5.3.210.0050.03511.79
5.3.200.0040.03211.79
5.3.190.0030.03011.79
5.3.180.0060.02911.79
5.3.170.0060.02411.78
5.3.160.0060.02011.79
5.3.150.0040.02311.79
5.3.140.0060.02111.78
5.3.130.0090.02511.78
5.3.120.0020.02611.78
5.3.110.0060.02011.78
5.3.100.0030.02311.51
5.3.90.0040.02111.49
5.3.80.0070.02211.48
5.3.70.0060.02011.49
5.3.60.0060.02211.48
5.3.50.0040.02311.45
5.3.40.0050.02111.45
5.3.30.0080.02011.42
5.3.20.0040.02111.31
5.3.10.0060.02111.29
5.3.00.0040.02811.29
5.2.170.0050.02410.04
5.2.160.0080.02210.04
5.2.150.0050.02510.04
5.2.140.0070.02110.04
5.2.130.0080.02110.02
5.2.120.0070.01910.02
5.2.110.0040.01810.02
5.2.100.0050.01910.02
5.2.90.0020.01810.02
5.2.80.0060.02210.02
5.2.70.0040.02810.02
5.2.60.0060.0239.99
5.2.50.0050.0199.98
5.2.40.0050.0159.97
5.2.30.0050.0219.96
5.2.20.0040.0229.95
5.2.10.0030.0229.91
5.2.00.0020.0209.84
5.1.60.0050.0149.48
5.1.50.0020.0159.48
5.1.40.0040.0139.47
5.1.30.0020.0179.64
5.1.20.0020.0189.65
5.1.10.0040.0149.52
5.1.00.0050.0149.52
5.0.50.0020.0148.76
5.0.40.0020.0128.69
5.0.30.0030.0188.59
5.0.20.0060.0188.58
5.0.10.0030.0168.57
5.0.00.0050.0228.56
4.4.90.0010.0147.84
4.4.80.0050.0117.83
4.4.70.0020.0157.82
4.4.60.0020.0127.83
4.4.50.0020.0107.84
4.4.40.0020.0167.80
4.4.30.0020.0137.83
4.4.20.0060.0107.87
4.4.10.0020.0137.87
4.4.00.0020.0187.83
4.3.110.0010.0147.79
4.3.100.0030.0107.78
4.3.90.0020.0107.77
4.3.80.0020.0167.74
4.3.70.0020.0107.77
4.3.60.0030.0087.76
4.3.50.0030.0087.76
4.3.40.0030.0177.72
4.3.30.0010.0117.09
4.3.20.0010.0107.08
4.3.10.0030.0097.06
4.3.00.0050.0109.26

preferences:
46.45 ms | 400 KiB | 5 Q