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(""=>""), $arr); $good_array = array(""=>"") + $arr; print_r($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)
8.3.60.0110.01116.75
8.3.50.0090.00716.28
8.3.40.0090.00618.72
8.3.30.0070.00718.45
8.3.20.0000.00918.57
8.3.10.0000.00820.62
8.3.00.0000.00919.25
8.2.180.0100.01018.41
8.2.170.0030.01022.96
8.2.160.0100.00320.53
8.2.150.0140.00424.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0080.00019.88
8.2.110.0060.00321.10
8.2.100.0040.00717.72
8.2.90.0030.00719.30
8.2.80.0080.00419.09
8.2.70.0040.00417.75
8.2.60.0000.00917.93
8.2.50.0030.00618.07
8.2.40.0040.00418.16
8.2.30.0000.00718.11
8.2.20.0050.00217.66
8.2.10.0050.00217.81
8.2.00.0030.00917.78
8.1.280.0100.00625.92
8.1.270.0070.00024.66
8.1.260.0050.00326.35
8.1.250.0050.00328.09
8.1.240.0140.00320.69
8.1.230.0000.01120.92
8.1.220.0030.00617.74
8.1.210.0080.00318.85
8.1.200.0030.00617.35
8.1.190.0040.00417.54
8.1.180.0050.00318.10
8.1.170.0040.00418.77
8.1.160.0040.00418.84
8.1.150.0030.00518.55
8.1.140.0050.00317.31
8.1.130.0030.00517.79
8.1.120.0080.00017.38
8.1.110.0030.00517.37
8.1.100.0000.00717.29
8.1.90.0040.00417.31
8.1.80.0000.00817.33
8.1.70.0050.00317.44
8.1.60.0000.00917.47
8.1.50.0000.00717.44
8.1.40.0040.00417.36
8.1.30.0050.00217.55
8.1.20.0060.00617.62
8.1.10.0050.00217.49
8.1.00.0050.00317.46
8.0.300.0000.00719.95
8.0.290.0040.00416.75
8.0.280.0030.00318.46
8.0.270.0070.00017.21
8.0.260.0030.00516.73
8.0.250.0080.00016.99
8.0.240.0040.00416.93
8.0.230.0000.00716.94
8.0.220.0030.00316.78
8.0.210.0000.00816.77
8.0.200.0060.00016.82
8.0.190.0070.00016.95
8.0.180.0070.00016.82
8.0.170.0090.00016.94
8.0.160.0070.00016.90
8.0.150.0000.00916.85
8.0.140.0000.00716.89
8.0.130.0000.00513.35
8.0.120.0040.00416.94
8.0.110.0030.00616.79
8.0.100.0040.00416.92
8.0.90.0000.00716.96
8.0.80.0030.01216.84
8.0.70.0000.00716.80
8.0.60.0070.00016.92
8.0.50.0000.00717.00
8.0.30.0110.00817.16
8.0.20.0110.00917.08
8.0.10.0040.00417.02
8.0.00.0090.01016.73
7.4.330.0020.00212.93
7.4.320.0000.00716.53
7.4.300.0040.00416.50
7.4.290.0000.00716.59
7.4.280.0050.00216.37
7.4.270.0080.00016.38
7.4.260.0030.00313.22
7.4.250.0040.00416.43
7.4.240.0070.00016.54
7.4.230.0050.00316.56
7.4.220.0110.00716.48
7.4.210.0070.00716.44
7.4.200.0030.00316.57
7.4.190.0000.00716.42
7.4.160.0100.00616.57
7.4.150.0070.01016.45
7.4.140.0090.00816.54
7.4.130.0090.00816.48
7.4.120.0090.00916.47
7.4.110.0140.00316.46
7.4.100.0030.01916.50
7.4.90.0190.00316.46
7.4.80.0090.00916.38
7.4.70.0060.00916.37
7.4.60.0040.01216.39
7.4.50.0060.00316.65
7.4.40.0040.00716.38
7.4.30.0120.00616.44
7.4.00.0080.00814.96
7.3.330.0050.00012.95
7.3.320.0000.00513.07
7.3.310.0000.00716.20
7.3.300.0070.00016.30
7.3.290.0110.00416.25
7.3.280.0050.01216.30
7.3.270.0100.01316.50
7.3.260.0100.00716.52
7.3.250.0160.00516.37
7.3.240.0070.01316.60
7.3.230.0130.00316.32
7.3.210.0030.01416.34
7.3.200.0190.00319.39
7.3.190.0060.00916.32
7.3.180.0070.01016.43
7.3.170.0030.01416.48
7.3.160.0090.00616.32
7.3.120.0080.00814.62
7.3.110.0060.01114.82
7.3.100.0030.01414.84
7.3.90.0060.00914.89
7.3.80.0070.00714.79
7.3.70.0040.01114.79
7.3.60.0050.00514.51
7.3.50.0030.00614.57
7.3.40.0120.00314.93
7.3.30.0030.00914.66
7.3.20.0070.00716.73
7.3.10.0060.00916.43
7.3.00.0080.00916.30
7.2.330.0060.01216.64
7.2.320.0000.01716.45
7.2.310.0060.01216.30
7.2.300.0130.00716.74
7.2.290.0000.01716.34
7.2.250.0030.01114.89
7.2.240.0000.01914.94
7.2.230.0100.01015.00
7.2.220.0000.00914.53
7.2.210.0030.00914.81
7.2.200.0060.00615.24
7.2.190.0000.01114.87
7.2.180.0120.00014.82
7.2.170.0030.00915.14
7.2.130.0080.00816.38
7.2.120.0110.00716.48
7.2.110.0060.00916.61
7.2.100.0040.00716.25
7.2.90.0060.00916.52
7.2.80.0060.00916.56
7.2.70.0100.00716.52
7.2.60.0070.01016.49
7.2.50.0160.00416.30
7.2.40.0090.00616.64
7.2.30.0110.00316.41
7.2.20.0090.00916.50
7.2.10.0120.00316.57
7.2.00.0070.00818.01
7.1.330.0060.00915.50
7.1.320.0040.00715.95
7.1.310.0030.00615.99
7.1.300.0000.01315.84
7.1.290.0000.01515.68
7.1.280.0060.00615.84
7.1.270.0090.00615.88
7.1.260.0070.00715.71
7.1.250.0120.00615.46
7.1.240.0100.00715.60
7.1.230.0070.01415.49
7.1.220.0060.00615.55
7.1.210.0070.01015.66
7.1.200.0090.00615.64
7.1.190.0070.00715.64
7.1.180.0100.01015.62
7.1.170.0100.01315.55
7.1.160.0100.00715.61
7.1.150.0130.00315.47
7.1.140.0090.00615.40
7.1.130.0150.00315.55
7.1.120.0150.00415.36
7.1.110.0080.00815.66
7.1.100.0120.00516.67
7.1.90.0130.00715.22
7.1.80.0110.01115.34
7.1.70.0050.00816.36
7.1.60.0080.01317.48
7.1.50.0050.01416.09
7.1.40.0080.00515.29
7.1.30.0100.00715.80
7.1.20.0140.00415.56
7.1.10.0070.01015.63
7.1.00.0140.03518.97
7.0.330.0110.00715.17
7.0.320.0090.00315.00
7.0.310.0060.00615.18
7.0.300.0090.00915.53
7.0.290.0140.00014.96
7.0.280.0100.00714.91
7.0.270.0070.01115.09
7.0.260.0040.00815.29
7.0.250.0060.00814.95
7.0.240.0060.01315.42
7.0.230.0070.01014.85
7.0.220.0130.00715.00
7.0.210.0140.00715.20
7.0.200.0320.00814.89
7.0.190.0060.00915.32
7.0.180.0130.00314.93
7.0.170.0070.01115.33
7.0.160.0100.00715.32
7.0.150.0080.00415.27
7.0.140.0050.04218.70
7.0.130.0070.00715.04
7.0.120.0070.01818.77
7.0.110.0060.00615.29
7.0.100.0080.00614.92
7.0.90.0060.01215.19
7.0.80.0120.00815.23
7.0.70.0130.00315.09
7.0.60.0030.03017.67
7.0.50.0060.02516.59
7.0.40.0050.02516.60
7.0.30.0150.04616.80
7.0.20.0180.02516.85
7.0.10.0160.02316.86
7.0.00.0030.04316.72
5.6.380.0070.00713.93
5.6.370.0060.00314.45
5.6.360.0080.00314.59
5.6.350.0110.00314.43
5.6.340.0080.00814.18
5.6.330.0060.01314.50
5.6.320.0050.00814.39
5.6.310.0030.01314.48
5.6.300.0070.00714.52
5.6.290.0060.00914.44
5.6.280.0020.05317.71
5.6.270.0060.00314.50
5.6.260.0040.01114.17
5.6.250.0070.00714.06
5.6.240.0030.00814.15
5.6.230.0000.01114.34
5.6.220.0060.00314.14
5.6.210.0030.04717.40
5.6.200.0120.03816.26
5.6.190.0020.02917.37
5.6.180.0130.02517.36
5.6.170.0160.03117.50
5.6.160.0030.04017.53
5.6.150.0050.03616.26
5.6.140.0070.03316.34
5.6.130.0100.03716.40
5.6.120.0050.05017.72
5.6.110.0100.03717.58
5.6.100.0070.04017.53
5.6.90.0050.02417.62
5.6.80.0020.02517.44
5.6.70.0200.03317.13
5.6.60.0120.00014.05
5.6.50.0080.00814.13
5.6.40.0060.01313.95
5.6.30.0000.01613.83
5.6.20.0000.01814.15
5.6.10.0070.01014.25
5.6.00.0060.00914.18
5.5.380.0000.01211.01
5.5.370.0120.00310.93
5.5.360.0090.00311.16
5.5.350.0160.04015.64
5.5.340.0100.04114.65
5.5.330.0050.03715.77
5.5.320.0120.02315.84
5.5.310.0090.02515.86
5.5.300.0070.03714.48
5.5.290.0100.04014.40
5.5.280.0030.03416.03
5.5.270.0050.04115.94
5.5.260.0080.02115.74
5.5.250.0060.03315.86
5.5.240.0050.03715.60
5.5.230.0090.00311.20
5.5.220.0040.00811.00
5.5.210.0080.00810.96
5.5.200.0040.00910.71
5.5.190.0140.00511.34
5.5.180.0110.00511.01
5.5.170.0110.00511.14
5.5.160.0130.00511.23
5.5.150.0120.00311.29
5.5.140.0110.00611.05
5.5.130.0100.00611.18
5.5.120.0040.01111.17
5.5.110.0130.00211.25
5.5.100.0130.00411.16
5.5.90.0080.00411.13
5.5.80.0130.00611.26
5.5.70.0050.01111.20
5.5.60.0070.00411.29
5.5.50.0050.01011.21
5.5.40.0060.01211.25
5.5.30.0040.01211.11
5.5.20.0030.00910.98
5.5.10.0000.01011.15
5.5.00.0140.00010.54
5.4.450.0030.04715.16
5.4.440.0120.03815.38
5.4.430.0080.02515.17
5.4.420.0030.04815.10
5.4.410.0080.03715.11
5.4.400.0070.04014.90
5.4.390.0050.04415.03
5.4.380.0060.04114.81
5.4.370.0080.04015.22
5.4.360.0080.04615.11
5.4.350.0120.03315.07
5.4.340.0110.03415.14
5.4.330.0140.00310.86
5.4.320.0040.02714.90
5.4.310.0090.02415.19
5.4.300.0050.02515.12
5.4.290.0110.03815.11
5.4.280.0100.03814.96
5.4.270.0060.02515.21
5.4.260.0060.03115.00
5.4.250.0120.03815.07
5.4.240.0090.02415.08
5.4.230.0190.02115.12
5.4.220.0070.02715.12
5.4.210.0140.03515.23
5.4.200.0080.04215.06
5.4.190.0110.03614.86
5.4.180.0120.02014.90
5.4.170.0080.03815.07
5.4.160.0040.02414.84
5.4.150.0060.03414.90
5.4.140.0090.03513.78
5.4.130.0050.04013.52
5.4.120.0080.03113.61
5.4.110.0100.03213.71
5.4.100.0030.02813.70
5.4.90.0040.02513.80
5.4.80.0000.02413.73
5.4.70.0030.02413.72
5.4.60.0030.03213.82
5.4.50.0060.02013.79
5.4.40.0090.03513.74
5.4.30.0030.03413.64
5.4.20.0050.04113.75
5.4.10.0070.03713.93
5.4.00.0000.03513.58
5.3.290.0180.03312.54
5.3.280.0070.02712.64
5.3.270.0060.01912.68
5.3.260.0030.02812.65
5.3.250.0060.03212.66
5.3.240.0050.03412.53
5.3.230.0030.02712.57
5.3.220.0100.02712.56
5.3.210.0070.03512.54
5.3.200.0060.04012.50
5.3.190.0050.02312.51
5.3.180.0080.02012.63
5.3.170.0040.02212.63
5.3.160.0070.03012.56
5.3.150.0050.02612.63
5.3.140.0020.04312.48
5.3.130.0050.04412.64
5.3.120.0050.02212.56
5.3.110.0090.03712.45
5.3.100.0080.03812.36
5.3.90.0060.02112.35
5.3.80.0070.02212.31
5.3.70.0030.02512.08
5.3.60.0050.04012.32
5.3.50.0020.03212.10
5.3.40.0050.02812.14
5.3.30.0050.02512.27
5.3.20.0030.03312.11
5.3.10.0030.02312.05
5.3.00.0120.02911.95
5.2.170.0070.03210.73
5.2.160.0050.02310.70
5.2.150.0070.02210.72
5.2.140.0080.01610.77
5.2.130.0100.02510.69
5.2.120.0010.02810.71
5.2.110.0060.01810.67
5.2.100.0120.02710.75
5.2.90.0030.03110.71
5.2.80.0020.03710.70
5.2.70.0040.02510.67
5.2.60.0030.02610.73
5.2.50.0020.03610.71
5.2.40.0050.03110.65
5.2.30.0050.02610.55
5.2.20.0040.02010.60
5.2.10.0100.02310.59
5.2.00.0050.03210.55
5.1.60.0040.02110.11
5.1.50.0030.01810.13
5.1.40.0070.01310.11
5.1.30.0010.01610.31
5.1.20.0040.01610.30
5.1.10.0060.02510.16
5.1.00.0020.02610.11
5.0.50.0070.0179.37
5.0.40.0030.0269.33
5.0.30.0050.0359.27
5.0.20.0020.0159.29
5.0.10.0070.0209.20
5.0.00.0020.0279.21
4.4.90.0020.0229.02
4.4.80.0030.0189.02
4.4.70.0020.0109.02
4.4.60.0040.0089.02
4.4.50.0030.0139.02
4.4.40.0000.0309.02
4.4.30.0000.0109.02
4.4.20.0020.0149.02
4.4.10.0040.0139.02
4.4.00.0020.0179.03
4.3.110.0020.0189.03
4.3.100.0040.0169.03
4.3.90.0030.0089.04
4.3.80.0020.0209.04
4.3.70.0020.0139.05
4.3.60.0030.0089.06
4.3.50.0000.0219.06
4.3.40.0000.0229.06
4.3.30.0020.0189.06
4.3.20.0020.0199.06
4.3.10.0030.0139.06
4.3.00.0020.0189.06

preferences:
44.6 ms | 400 KiB | 5 Q