3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array(); $arr['01'] = 'sdf'; $arr['09'] = 'sdf2'; $arr['10'] = 'sdf3'; $arr['11'] = 'sdf3'; $arr['jj'] = 'sdf3'; $arr2[1] = 'sdf'; $arr2[9] = 'sdf2'; $arr2[10] = 'sdf3'; $arr2[11] = 'sdf3'; $newArray = array_merge(array(""=>""), $arr2); $good_array = array(""=>"") + $arr2; print_r($newArray); print_r($good_array);

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)
8.3.70.0140.00418.43
8.3.60.0040.01118.43
8.3.50.0070.01221.99
8.3.40.0040.01418.76
8.3.30.0090.00619.04
8.3.20.0040.00420.39
8.3.10.0040.00423.65
8.3.00.0000.00822.34
8.2.190.0130.00716.88
8.2.180.0110.00416.63
8.2.170.0060.01222.96
8.2.160.0080.00622.15
8.2.150.0040.00424.18
8.2.140.0070.00024.66
8.2.130.0000.00726.16
8.2.120.0040.00419.36
8.2.110.0030.00622.13
8.2.100.0080.00417.91
8.2.90.0040.00419.21
8.2.80.0060.00317.97
8.2.70.0050.00317.63
8.2.60.0000.00817.93
8.2.50.0000.00818.07
8.2.40.0040.00418.22
8.2.30.0030.00518.02
8.2.20.0070.00017.80
8.2.10.0000.00819.58
8.2.00.0040.00417.67
8.1.280.0110.00425.92
8.1.270.0030.00623.79
8.1.260.0060.00326.35
8.1.250.0100.00328.09
8.1.240.0090.00023.91
8.1.230.0040.00819.07
8.1.220.0050.00317.74
8.1.210.0030.00518.77
8.1.200.0080.00317.35
8.1.190.0090.00017.51
8.1.180.0000.00818.10
8.1.170.0000.00918.53
8.1.160.0040.00421.95
8.1.150.0040.00418.63
8.1.140.0080.00017.40
8.1.130.0000.00817.84
8.1.120.0040.00417.38
8.1.110.0070.00017.31
8.1.100.0040.00417.34
8.1.90.0040.00417.42
8.1.80.0040.00417.35
8.1.70.0030.00317.29
8.1.60.0030.00717.43
8.1.50.0040.00417.30
8.1.40.0000.00917.48
8.1.30.0060.00317.40
8.1.20.0000.00817.59
8.1.10.0040.00417.49
8.1.00.0070.00017.53
8.0.300.0080.00018.77
8.0.290.0000.00717.05
8.0.280.0050.00318.46
8.0.270.0030.00317.25
8.0.260.0030.00316.83
8.0.250.0030.00316.85
8.0.240.0000.00716.93
8.0.230.0000.00616.99
8.0.220.0040.00416.83
8.0.210.0000.00716.92
8.0.200.0060.00016.95
8.0.190.0070.00016.85
8.0.180.0070.00016.83
8.0.170.0040.00416.94
8.0.160.0040.00416.82
8.0.150.0040.00416.84
8.0.140.0000.00716.90
8.0.130.0000.00613.36
8.0.120.0040.00416.91
8.0.110.0030.00616.87
8.0.100.0070.00016.91
8.0.90.0040.00417.01
8.0.80.0060.00916.91
8.0.70.0040.00416.85
8.0.60.0040.00416.81
8.0.50.0000.00816.92
8.0.30.0060.01217.04
8.0.20.0090.01017.40
8.0.10.0040.00416.82
8.0.00.0080.01316.72
7.4.330.0050.00015.06
7.4.320.0040.00416.56
7.4.300.0060.00016.59
7.4.290.0030.00316.43
7.4.280.0030.00316.42
7.4.270.0030.00316.56
7.4.260.0030.00316.54
7.4.250.0000.00716.42
7.4.240.0030.00416.51
7.4.230.0000.00716.45
7.4.220.0070.01316.55
7.4.210.0100.00616.55
7.4.200.0020.00516.48
7.4.190.0070.00016.43
7.4.160.0080.01316.43
7.4.150.0110.00717.40
7.4.140.0110.01217.86
7.4.130.0070.01016.39
7.4.120.0150.00516.41
7.4.110.0130.00316.49
7.4.100.0050.01416.50
7.4.90.0130.00716.60
7.4.80.0100.01016.58
7.4.70.0060.01016.47
7.4.60.0040.01416.28
7.4.50.0000.00416.50
7.4.40.0030.01322.77
7.4.30.0090.00616.40
7.4.00.0090.00814.91
7.3.330.0000.00513.11
7.3.320.0050.00013.25
7.3.310.0000.00816.12
7.3.300.0030.00316.25
7.3.290.0060.00916.25
7.3.280.0070.01016.24
7.3.270.0140.00317.40
7.3.260.0070.01016.39
7.3.250.0080.00916.29
7.3.240.0090.00616.52
7.3.230.0110.00616.39
7.3.210.0070.01116.34
7.3.200.0070.01619.39
7.3.190.0180.00616.18
7.3.180.0060.01016.43
7.3.170.0180.00416.27
7.3.160.0030.01216.33
7.3.120.0080.00814.52
7.3.110.0150.00414.81
7.3.100.0040.01114.76
7.3.90.0080.00414.85
7.3.80.0110.00714.59
7.3.70.0050.00814.53
7.3.60.0100.00714.77
7.3.50.0030.01214.75
7.3.40.0060.00914.95
7.3.30.0120.00314.71
7.3.20.0080.00816.65
7.3.10.0070.00716.65
7.3.00.0050.00716.60
7.2.330.0100.00716.63
7.2.320.0060.01116.55
7.2.310.0100.00716.70
7.2.300.0130.00316.66
7.2.290.0090.00616.38
7.2.250.0040.01115.09
7.2.240.0100.01014.61
7.2.230.0100.00315.03
7.2.220.0030.00614.99
7.2.210.0070.00714.70
7.2.200.0080.00814.96
7.2.190.0030.01314.70
7.2.180.0120.00015.04
7.2.170.0070.01014.99
7.2.130.0030.01216.88
7.2.120.0080.00516.90
7.2.110.0030.00916.65
7.2.100.0000.01416.69
7.2.90.0040.00816.74
7.2.80.0030.01016.70
7.2.70.0030.01016.86
7.2.60.0060.00716.74
7.2.50.0040.00716.82
7.2.40.0020.00916.76
7.2.30.0020.01016.80
7.2.20.0070.00516.84
7.2.10.0060.00516.96
7.2.00.0030.01017.61
7.1.330.0100.00615.72
7.1.320.0040.01115.94
7.1.310.0060.00615.84
7.1.300.0090.00615.73
7.1.290.0040.00415.50
7.1.280.0090.00615.69
7.1.270.0080.00815.75
7.1.260.0000.01115.70
7.1.250.0100.00515.82
7.1.200.0000.01115.53
7.1.100.0000.00918.08
7.1.70.0000.00917.04
7.1.60.0140.01019.24
7.1.50.0090.01216.99
7.1.00.0000.07722.48
7.0.200.9510.01016.46
7.0.140.0100.06722.01
7.0.100.0030.03719.92
7.0.90.0130.03720.00
7.0.80.0070.03720.01
7.0.70.0100.04019.88
7.0.60.0100.04019.88
7.0.50.0200.03320.38
7.0.40.0170.07320.16
7.0.30.0100.08720.13
7.0.20.0200.06320.15
7.0.10.0070.07320.13
7.0.00.0100.04720.05
5.6.280.0030.07320.78
5.6.250.0070.04320.75
5.6.240.0000.04720.58
5.6.230.0100.03720.59
5.6.220.0030.03720.57
5.6.210.0070.03320.45
5.6.200.0100.03321.10
5.6.190.0100.08721.02
5.6.180.0070.07021.03
5.6.170.0000.09720.95
5.6.160.0170.06721.11
5.6.150.0170.04321.16
5.6.140.0030.08021.11
5.6.130.0200.07020.98
5.6.120.0100.07021.06
5.6.110.0100.04721.03
5.6.100.0030.08021.05
5.6.90.0130.07720.97
5.6.80.0030.08020.39
5.6.70.0070.06720.48
5.6.60.0070.04720.32
5.6.50.0070.07720.40
5.6.40.0070.08020.31
5.6.30.0100.07020.44
5.6.20.0070.07020.52
5.6.10.0030.04720.35
5.6.00.0130.07320.38
5.5.380.0000.06720.35
5.5.370.0030.03720.40
5.5.360.0030.03720.33
5.5.350.0070.03320.42
5.5.340.0030.03320.89
5.5.330.0070.08720.86
5.5.320.0000.05720.64
5.5.310.0070.07320.80
5.5.300.0100.04720.90
5.5.290.0030.07320.79
5.5.280.0130.07020.77
5.5.270.0100.08020.74
5.5.260.0130.06720.82
5.5.250.0070.04020.57
5.5.240.0100.06720.07
5.5.230.0000.04020.10
5.5.220.0000.04020.16
5.5.210.0130.06020.20
5.5.200.0070.07020.23
5.5.190.0000.08020.13
5.5.180.0030.07720.12
5.5.160.0070.04720.26
5.5.150.0070.03320.21
5.5.140.0000.05020.24
5.5.130.0130.06720.23
5.5.120.0070.07720.27
5.5.110.0070.06720.16
5.5.100.0070.04020.07
5.5.90.0130.07020.14
5.5.80.0130.06720.12
5.5.70.0030.08320.11
5.5.60.0100.07720.05
5.5.50.0100.08720.08
5.5.40.0070.07319.93
5.5.30.0070.07720.13
5.5.20.0070.08319.99
5.5.10.0100.06720.03
5.5.00.0070.06019.98
5.4.450.0100.07319.17
5.4.440.0070.04719.37
5.4.430.0070.07319.55
5.4.420.0030.03719.36
5.4.410.0070.07719.22
5.4.400.0070.07318.88
5.4.390.0030.04319.16
5.4.380.0130.06019.03
5.4.370.0130.06718.85
5.4.360.0030.07718.85
5.4.350.0070.05719.16
5.4.340.0070.07718.90
5.4.320.0000.04018.88
5.4.310.0070.07018.95
5.4.300.0030.06719.15
5.4.290.0100.07318.94
5.4.280.0100.07318.95
5.4.270.0030.06718.89
5.4.260.0030.04319.02
5.4.250.0100.07719.22
5.4.240.0170.06319.04
5.4.230.0030.08019.15
5.4.220.0070.07719.04
5.4.210.0030.08019.13
5.4.200.0100.07019.04
5.4.190.0070.07718.87
5.4.180.0070.05319.11
5.4.170.0170.07019.04
5.4.160.0070.03319.18
5.4.150.0030.04718.92
5.4.140.0070.07316.43
5.4.130.0070.07316.32
5.4.120.0100.06316.49
5.4.110.0030.04716.51
5.4.100.0100.04016.47
5.4.90.0100.03716.51
5.4.80.0030.08016.31
5.4.70.0000.07316.32
5.4.60.0100.04016.31
5.4.50.0070.05016.44
5.4.40.0030.07716.29
5.4.30.0030.05716.47
5.4.20.0070.06316.39
5.4.10.0070.06716.44
5.4.00.0070.06315.90
5.3.290.0030.05314.80
5.3.280.0100.07314.61
5.3.270.0030.08014.68
5.3.260.0100.04314.58
5.3.250.0100.07314.69
5.3.240.0030.06714.74
5.3.230.0200.03314.66
5.3.220.0130.07014.56
5.3.210.0100.04014.70
5.3.200.0070.04314.49
5.3.190.0130.07014.65
5.3.180.0130.07014.64
5.3.170.0070.05314.52
5.3.160.0070.06714.52
5.3.150.0170.06014.55
5.3.140.0030.06014.54
5.3.130.0070.04014.46
5.3.120.0070.07714.68
5.3.110.0070.06714.57
5.3.100.0130.07014.03
5.3.90.0070.07314.15
5.3.80.0170.06013.90
5.3.70.0030.06713.90
5.3.60.0030.08013.97
5.3.50.0100.05714.00
5.3.40.0000.08014.07
5.3.30.0030.08013.88
5.3.20.0030.07713.79
5.3.10.0130.06713.57
5.3.00.0000.07013.63
5.2.170.0070.06011.04
5.2.160.0000.07011.27
5.2.150.0030.06711.04
5.2.140.0070.05311.19
5.2.130.0100.03011.09
5.2.120.0070.06310.98
5.2.110.0130.05311.14
5.2.100.0000.04011.08
5.2.90.0070.06011.23
5.2.80.0030.05711.20
5.2.70.0030.03011.15
5.2.60.0030.06310.92
5.2.50.0030.06310.89
5.2.40.0030.04011.07
5.2.30.0030.06310.95
5.2.20.0000.06310.86
5.2.10.0100.04710.88
5.2.00.0000.03710.84
5.1.60.0070.0509.82
5.1.50.0000.04010.08
5.1.40.0100.04010.01
5.1.30.0000.06010.33
5.1.20.0100.05310.35
5.1.10.0030.05710.09
5.1.00.0130.04710.05
5.0.50.0030.0339.27
5.0.40.0000.0309.27
5.0.30.0070.0609.27
5.0.20.0030.0409.27
5.0.10.0070.0379.27
5.0.00.0070.0509.27
4.4.90.0000.0409.27
4.4.80.0000.0379.27
4.4.70.0070.0139.27
4.4.60.0100.0309.27
4.4.50.0030.0339.27
4.4.40.0030.0609.27
4.4.30.0030.0339.27
4.4.20.0000.0379.27
4.4.10.0030.0309.27
4.4.00.0000.0309.27
4.3.110.0000.0339.27
4.3.100.0000.0309.27
4.3.90.0030.0339.27
4.3.80.0030.0539.27
4.3.70.0000.0339.27
4.3.60.0030.0279.27
4.3.50.0000.0379.27
4.3.40.0030.0509.27
4.3.30.0000.0379.27
4.3.20.0000.0379.27
4.3.10.0030.0209.27
4.3.00.0000.0379.27

preferences:
51.52 ms | 401 KiB | 5 Q