3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array( 'name' => 'a', (string)'1' => 'null' ); $b = array( 'name' => 'b', 1 => 'zero' ); $c = array( 'name' => 'c', (string)'1' => 'zeronull' ); var_dump($a); var_dump($b); var_dump(array_merge($a, $b)); var_dump(array_merge($a, $c)); var_dump(array_merge($a, $b, $c)); var_dump($a + $b);

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)
8.3.40.0110.00418.61
8.3.30.0120.00319.10
8.3.20.0080.00620.16
8.3.10.0030.00622.00
8.3.00.0040.00420.68
8.2.170.0120.00322.96
8.2.160.0000.01418.97
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0080.00026.16
8.2.120.0050.00319.49
8.2.110.0060.00322.30
8.2.100.0030.00919.64
8.2.90.0090.00019.05
8.2.80.0060.00318.03
8.2.70.0030.00517.38
8.2.60.0030.00617.80
8.2.50.0040.00418.07
8.2.40.0080.00019.97
8.2.30.0050.00318.09
8.2.20.0050.00317.74
8.2.10.0040.00417.77
8.2.00.0040.00417.87
8.1.270.0030.00522.19
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0070.00323.84
8.1.230.0040.00719.23
8.1.220.0040.00417.74
8.1.210.0000.00918.77
8.1.200.0060.00317.22
8.1.190.0080.00017.30
8.1.180.0060.00318.68
8.1.170.0060.00318.65
8.1.160.0040.00422.15
8.1.150.0050.00218.51
8.1.140.0030.00617.40
8.1.130.0070.00017.86
8.1.120.0000.00717.45
8.1.110.0030.00517.45
8.1.100.0070.00017.41
8.1.90.0070.00017.38
8.1.80.0030.00517.39
8.1.70.0030.00317.43
8.1.60.0060.00317.43
8.1.50.0000.00817.52
8.1.40.0060.00317.36
8.1.30.0000.00817.61
8.1.20.0080.00017.57
8.1.10.0080.00017.50
8.1.00.0040.00417.38
8.0.300.0000.00718.77
8.0.290.0070.00017.05
8.0.280.0030.00318.34
8.0.270.0000.00717.22
8.0.260.0000.00616.72
8.0.250.0050.00316.90
8.0.240.0000.00717.01
8.0.230.0040.00416.88
8.0.220.0000.00816.84
8.0.210.0070.00016.79
8.0.200.0040.00416.96
8.0.190.0070.00016.91
8.0.180.0000.00716.92
8.0.170.0030.00516.92
8.0.160.0080.00016.85
8.0.150.0040.00416.75
8.0.140.0040.00416.91
8.0.130.0060.00013.41
8.0.120.0070.00016.83
8.0.110.0050.00216.87
8.0.100.0040.00416.92
8.0.90.0000.00716.97
8.0.80.0130.00916.97
8.0.70.0050.00216.95
8.0.60.0040.00416.74
8.0.50.0040.00416.90
8.0.30.0130.01017.24
8.0.20.0110.00817.40
8.0.10.0000.00817.03
8.0.00.0080.01416.82
7.4.330.0000.00515.00
7.4.320.0060.00016.42
7.4.300.0000.00716.56
7.4.290.0040.00416.57
7.4.280.0040.00416.54
7.4.270.0040.00416.52
7.4.260.0000.00716.39
7.4.250.0000.00716.41
7.4.240.0040.00416.48
7.4.230.0050.00316.35
7.4.220.0070.01116.58
7.4.210.0050.01016.56
7.4.200.0070.00016.47
7.4.190.0080.00016.50
7.4.160.0100.01416.39
7.4.150.0160.00917.40
7.4.140.0140.00817.86
7.4.130.0110.00816.52
7.4.120.0120.00916.49
7.4.110.0100.00816.51
7.4.100.0160.00616.49
7.4.90.0090.01216.45
7.4.80.0060.01619.39
7.4.70.0140.00716.42
7.4.60.0100.00516.24
7.4.50.0000.00816.35
7.4.40.0000.01422.77
7.4.30.0080.01116.65
7.4.10.0060.01314.98
7.4.00.0040.00914.96
7.3.330.0000.00513.25
7.3.320.0000.00613.06
7.3.310.0030.00316.41
7.3.300.0040.00416.25
7.3.290.0080.00616.45
7.3.280.0070.00816.35
7.3.270.0240.00017.40
7.3.260.0100.01016.49
7.3.250.0060.01216.26
7.3.240.0070.01016.22
7.3.230.0090.01316.39
7.3.210.0100.00716.36
7.3.200.0060.01619.39
7.3.190.0030.01316.34
7.3.180.0030.01316.23
7.3.170.0100.00716.48
7.3.160.0060.00916.44
7.3.130.0100.01014.79
7.3.120.0070.00914.80
7.3.110.0070.01314.62
7.3.100.0030.00915.09
7.3.90.0060.00814.80
7.3.80.0030.01014.88
7.3.70.0040.01114.56
7.3.60.0100.00314.90
7.3.50.0090.00614.78
7.3.40.0070.01114.57
7.3.30.0070.00714.83
7.3.20.0040.00816.61
7.3.10.0060.00916.78
7.3.00.0040.00816.73
7.2.330.0150.00316.38
7.2.320.0060.01516.30
7.2.310.0090.00916.51
7.2.300.0070.01116.60
7.2.290.0130.01016.57
7.2.260.0070.01315.20
7.2.250.0060.01314.79
7.2.240.0030.01014.74
7.2.230.0100.00314.84
7.2.220.0060.00314.47
7.2.210.0040.01114.69
7.2.200.0000.00914.90
7.2.190.0130.00314.93
7.2.180.0070.01114.79
7.2.170.0060.00315.00
7.2.160.0030.01214.91
7.2.150.0030.01016.71
7.2.140.0000.01416.78
7.2.130.0030.01016.98
7.2.120.0030.01216.83
7.2.110.0020.01416.53
7.2.100.0130.00216.75
7.2.90.0090.00616.53
7.2.80.0070.00616.57
7.2.70.0060.00816.63
7.2.60.0070.00716.87
7.2.50.0060.00616.77
7.2.40.0050.01016.79
7.2.30.0060.00716.90
7.2.20.0050.01016.54
7.2.10.0070.00916.67
7.2.00.0080.00717.61
7.1.330.0040.01115.84
7.1.320.0000.01415.64
7.1.310.0070.00715.72
7.1.300.0060.00915.46
7.1.290.0030.01315.53
7.1.280.0070.00315.66
7.1.270.0000.00915.82
7.1.260.0100.00315.91
7.1.250.0070.00715.73
7.1.240.0040.00815.65
7.1.230.0050.00815.72
7.1.220.0090.00415.75
7.1.210.0060.00815.76
7.1.200.0050.00615.60
7.1.190.0050.00715.61
7.1.180.0090.00415.80
7.1.170.0030.00815.70
7.1.160.0060.00515.78
7.1.150.0060.00815.82
7.1.140.0080.00615.84
7.1.130.0020.01215.61
7.1.120.0030.01115.72
7.1.110.0060.00715.83
7.1.100.0050.00716.48
7.1.90.0100.00115.64
7.1.80.0090.00315.53
7.1.70.0010.01016.19
7.1.60.0080.00817.09
7.1.50.0080.00816.15
7.1.40.0040.00915.69
7.1.30.0030.00515.72
7.1.20.0080.00615.50
7.1.10.0060.00515.61
7.1.00.0030.01617.95
7.0.330.0030.00615.61
7.0.320.0060.00315.39
7.0.310.0050.00715.31
7.0.300.0040.00715.19
7.0.290.0080.00315.35
7.0.280.0040.01015.46
7.0.270.0050.00615.34
7.0.260.0070.00715.51
7.0.250.0090.00815.48
7.0.240.0070.00715.30
7.0.230.0070.00815.50
7.0.220.0050.00315.44
7.0.210.0080.00515.47
7.0.200.0040.00815.79
7.0.190.0040.00915.48
7.0.180.0050.00815.29
7.0.170.0050.00715.35
7.0.160.0110.00215.49
7.0.150.0060.00615.45
7.0.140.0050.02817.64
7.0.130.0030.01015.42
7.0.120.0090.00415.55
7.0.110.0050.00915.46
7.0.100.0080.03316.86
7.0.90.0100.02016.91
7.0.80.0050.01916.84
7.0.70.0050.01716.91
7.0.60.0080.01616.95
7.0.50.0060.01717.16
7.0.40.0060.02415.73
7.0.30.0050.02515.56
7.0.20.0020.02315.72
7.0.10.0050.01615.58
7.0.00.0090.01115.70
5.6.400.0070.00314.22
5.6.390.0060.00914.11
5.6.380.0080.00514.23
5.6.370.0080.00514.14
5.6.360.0060.00513.99
5.6.350.0020.00914.41
5.6.340.0090.00614.30
5.6.330.0080.00514.40
5.6.320.0060.00714.39
5.6.310.0050.01014.46
5.6.300.0080.00414.26
5.6.290.0060.00414.28
5.6.280.0060.02816.52
5.6.270.0070.00714.33
5.6.260.0040.00514.40
5.6.250.0100.02016.34
5.6.240.0090.01616.36
5.6.230.0060.01516.29
5.6.220.0020.01816.42
5.6.210.0030.01716.29
5.6.200.0010.02116.59
5.6.190.0040.01616.48
5.6.180.0040.01716.54
5.6.170.0070.01816.49
5.6.160.0050.02116.49
5.6.150.0040.02316.50
5.6.140.0060.02116.54
5.6.130.0050.01816.52
5.6.120.0070.01516.48
5.6.110.0050.01816.48
5.6.100.0080.02916.59
5.6.90.0050.01916.69
5.6.80.0070.02016.14
5.6.70.0040.01916.19
5.6.60.0040.02216.14
5.6.50.0020.03216.39
5.6.40.0050.02916.14
5.6.30.0050.02216.23
5.6.20.0080.02716.28
5.6.10.0030.03216.27
5.6.00.0080.02516.24
5.5.380.0060.01615.14
5.5.370.0040.01815.34
5.5.360.0070.01515.18
5.5.350.0040.01415.19
5.5.340.0030.01815.31
5.5.330.0030.01715.36
5.5.320.0080.01315.35
5.5.310.0070.01715.30
5.5.300.0040.02415.25
5.5.290.0050.01515.31
5.5.280.0010.02415.34
5.5.270.0030.02215.37
5.5.260.0050.02015.29
5.5.250.0020.01915.17
5.5.240.0060.01915.05
5.5.230.0080.01415.01
5.5.220.0080.02215.18
5.5.210.0020.01915.03
5.5.200.0050.03115.06
5.5.190.0090.02715.00
5.5.180.0050.02415.16
5.5.170.0050.00714.02
5.5.160.0060.02815.10
5.5.150.0040.03115.17
5.5.140.0070.03115.09
5.5.130.0060.03215.11
5.5.120.0070.02815.07
5.5.110.0090.02315.01
5.5.100.0060.03014.98
5.5.90.0090.03014.98
5.5.80.0090.01915.11
5.5.70.0020.03415.05
5.5.60.0080.02914.96
5.5.50.0070.02514.98
5.5.40.0030.03315.04
5.5.30.0020.02215.03
5.5.20.0060.02715.03
5.5.10.0070.03015.10
5.5.00.0070.02514.94
5.4.450.0070.01313.81
5.4.440.0040.01613.72
5.4.430.0030.01713.84
5.4.420.0030.01713.84
5.4.410.0020.01813.74
5.4.400.0050.01513.70
5.4.390.0020.02013.68
5.4.380.0050.02213.74
5.4.370.0070.02413.69
5.4.360.0070.01313.71
5.4.350.0080.01513.68
5.4.340.0060.01413.69
5.4.330.0070.00511.08
5.4.320.0050.02813.67
5.4.310.0020.03313.67
5.4.300.0050.02913.60
5.4.290.0070.02813.67
5.4.280.0030.02813.67
5.4.270.0070.02613.72
5.4.260.0050.02913.71
5.4.250.0070.02413.70
5.4.240.0050.03013.71
5.4.230.0050.02913.71
5.4.220.0050.03113.72
5.4.210.0050.02813.72
5.4.200.0040.02013.60
5.4.190.0030.03213.76
5.4.180.0070.02613.68
5.4.170.0050.02313.66
5.4.160.0050.01813.76
5.4.150.0080.02313.75
5.4.140.0060.02512.79
5.4.130.0030.01812.68
5.4.120.0050.02912.76
5.4.110.0040.01912.83
5.4.100.0040.02912.79
5.4.90.0020.02212.79
5.4.80.0040.02412.74
5.4.70.0070.02412.79
5.4.60.0060.02412.75
5.4.50.0050.02712.83
5.4.40.0070.02812.82
5.4.30.0070.02112.75
5.4.20.0060.02712.81
5.4.10.0060.02212.75
5.4.00.0030.02712.59
5.3.290.0090.02812.18
5.3.280.0060.02712.18
5.3.270.0060.02812.20
5.3.260.0080.02612.19
5.3.250.0050.01312.18
5.3.240.0070.02612.16
5.3.230.0010.02112.19
5.3.220.0040.02112.15
5.3.210.0050.03112.18
5.3.200.0050.01712.17
5.3.190.0050.01712.20
5.3.180.0060.02412.19
5.3.170.0050.02612.17
5.3.160.0050.03012.17
5.3.150.0060.02212.20
5.3.140.0030.02112.19
5.3.130.0030.01812.16
5.3.120.0050.01512.19
5.3.110.0020.03112.15
5.3.100.0060.02512.01
5.3.90.0020.01611.97
5.3.80.0060.01611.97
5.3.70.0100.02611.94
5.3.60.0040.02812.00
5.3.50.0030.03111.97
5.3.40.0060.01911.98
5.3.30.0040.02511.96
5.3.20.0040.02011.88
5.3.10.0080.02111.82
5.3.00.0030.01611.87
5.2.170.0050.02010.96
5.2.160.0070.03211.03
5.2.150.0010.02010.96
5.2.140.0020.02211.04
5.2.130.0030.02810.95
5.2.120.0090.02810.98
5.2.110.0110.02210.90
5.2.100.0000.02310.94
5.2.90.0060.01310.93
5.2.80.0030.01611.00
5.2.70.0000.02711.00
5.2.60.0050.03010.96
5.2.50.0100.02810.96
5.2.40.0080.02810.96
5.2.30.0060.03110.98
5.2.20.0080.02810.86
5.2.10.0050.02710.90
5.2.00.0050.03310.79
5.1.60.0030.02310.45
5.1.50.0040.01510.49
5.1.40.0000.01910.46
5.1.30.0050.02810.66
5.1.20.0050.02810.59
5.1.10.0000.02010.53
5.1.00.0050.02510.51
5.0.50.0030.0159.65
5.0.40.0030.0259.68
5.0.30.0030.0349.58
5.0.20.0070.0229.59
5.0.10.0050.0179.59
5.0.00.0080.0139.58
4.4.90.0020.0209.43
4.4.80.0030.0139.43
4.4.70.0000.0159.43
4.4.60.0030.0169.43
4.4.50.0020.0129.43
4.4.40.0020.0189.43
4.4.30.0020.0129.43
4.4.20.0000.0219.43
4.4.10.0020.0119.43
4.4.00.0030.0229.43
4.3.110.0000.0179.43
4.3.100.0010.0119.43
4.3.90.0000.0239.43
4.3.80.0000.0239.43
4.3.70.0020.0189.43
4.3.60.0020.0089.43
4.3.50.0050.0109.43
4.3.40.0020.0299.43
4.3.30.0000.0129.43
4.3.20.0020.0199.43
4.3.10.0010.0209.43
4.3.00.0070.0159.43

preferences:
55.06 ms | 400 KiB | 5 Q