3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a2 = array_diff(array(), array()); var_dump($a2); $a2[] = 'potato'; $a2[] = 'potato'; $a2[] = 'potato'; $a2[] = 'potato'; unset($a2[5], $a2[6], $a2[7], $a2[8]); $a3 = $a2; $a2[] = 'five'; var_dump($a2); $a3[] = 'jam'; var_dump($a3);

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)
8.3.60.0120.00318.55
8.3.50.0090.01321.13
8.3.40.0070.00718.84
8.3.30.0100.00319.27
8.3.20.0030.00620.37
8.3.10.0000.00721.86
8.3.00.0070.00719.26
8.2.180.0160.00316.50
8.2.170.0110.00322.96
8.2.160.0100.00320.39
8.2.150.0050.00324.18
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0080.00022.09
8.2.110.0030.00620.13
8.2.100.0030.00917.60
8.2.90.0000.00818.16
8.2.80.0000.00817.97
8.2.70.0030.00617.63
8.2.60.0030.00517.92
8.2.50.0000.00818.07
8.2.40.0000.00819.92
8.2.30.0000.00817.95
8.2.20.0060.00317.69
8.2.10.0080.00018.12
8.2.00.0000.00717.74
8.1.280.0090.01225.92
8.1.270.0030.00522.01
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0060.00322.05
8.1.230.0050.00520.88
8.1.220.0000.00917.74
8.1.210.0000.00818.77
8.1.200.0030.00617.23
8.1.190.0030.00517.35
8.1.180.0030.00618.10
8.1.170.0040.00418.48
8.1.160.0040.00421.98
8.1.150.0040.00418.67
8.1.140.0070.00017.48
8.1.130.0030.00317.82
8.1.120.0000.00717.30
8.1.110.0040.00417.27
8.1.100.0050.00217.37
8.1.90.0000.00717.41
8.1.80.0040.00417.45
8.1.70.0070.00017.34
8.1.60.0060.00317.41
8.1.50.0040.00417.46
8.1.40.0060.00317.41
8.1.30.0030.00617.44
8.1.20.0040.00417.52
8.1.10.0000.00717.34
8.1.00.0040.00417.41
8.0.300.0070.00020.07
8.0.290.0000.00716.63
8.0.280.0050.00218.46
8.0.270.0000.00717.20
8.0.260.0070.00017.10
8.0.250.0000.00716.83
8.0.240.0030.00316.93
8.0.230.0030.00516.83
8.0.220.0000.00616.79
8.0.210.0070.00016.82
8.0.200.0000.00616.78
8.0.190.0090.00016.78
8.0.180.0050.00216.71
8.0.170.0080.00016.80
8.0.160.0030.00316.80
8.0.150.0070.00016.77
8.0.140.0030.00316.77
8.0.130.0050.00013.31
8.0.120.0000.00716.76
8.0.110.0000.00716.86
8.0.100.0040.00416.79
8.0.90.0000.00716.80
8.0.80.0060.01116.86
8.0.70.0000.00716.70
8.0.60.0090.00016.77
8.0.50.0000.00816.69
8.0.30.0060.01316.92
8.0.20.0120.00817.40
8.0.10.0040.00416.78
8.0.00.0130.00516.75
7.4.330.0000.00515.00
7.4.320.0030.00316.64
7.4.300.0060.00016.47
7.4.290.0070.00016.59
7.4.280.0000.00716.64
7.4.270.0000.00716.61
7.4.260.0080.00016.60
7.4.250.0040.00416.47
7.4.240.0020.00516.53
7.4.230.0000.00716.65
7.4.220.0130.00616.63
7.4.210.0170.00416.62
7.4.200.0000.00716.70
7.4.160.0130.00616.57
7.4.150.0100.01017.40
7.4.140.0180.00417.86
7.4.130.0120.00516.47
7.4.120.0100.01016.57
7.4.110.0090.01516.47
7.4.100.0120.00616.45
7.4.90.0130.00316.42
7.4.80.0150.00319.39
7.4.70.0070.01116.37
7.4.60.0030.01316.41
7.4.50.0030.00516.41
7.4.40.0090.01216.41
7.4.30.0120.00816.58
7.4.00.0060.00915.09
7.3.330.0000.00513.04
7.3.320.0050.00013.18
7.3.310.0040.00416.33
7.3.300.0000.00716.29
7.3.290.0100.00316.38
7.3.280.0060.01216.31
7.3.270.0090.00917.40
7.3.260.0200.00316.79
7.3.250.0100.00716.40
7.3.240.0100.00716.35
7.3.230.0150.00316.59
7.3.210.0150.00316.57
7.3.200.0080.01119.39
7.3.190.0130.00916.55
7.3.180.0130.00316.55
7.3.170.0070.01016.59
7.3.160.0080.00816.57
7.3.120.0040.01114.80
7.3.110.0030.01015.00
7.3.100.0100.00315.12
7.3.90.0070.00714.70
7.3.80.0070.00714.57
7.3.70.0090.00614.98
7.3.60.0060.01014.81
7.3.50.0040.01414.73
7.3.40.0030.01214.89
7.3.30.0080.00614.63
7.3.20.0030.01016.75
7.3.10.0110.00616.46
7.3.00.0060.00616.24
7.2.330.0100.00716.46
7.2.320.0150.00616.22
7.2.310.0070.01116.20
7.2.300.0060.00916.62
7.2.290.0130.01016.32
7.2.240.0120.00314.80
7.2.230.0070.01015.08
7.2.220.0000.01414.74
7.2.210.0030.01315.02
7.2.200.0080.00814.70
7.2.190.0130.00315.00
7.2.180.0060.01015.05
7.2.170.0070.00315.04
7.2.160.0080.00814.85
7.2.150.0000.01116.71
7.2.140.0030.01316.73
7.2.130.0090.01016.80
7.2.120.0090.00716.70
7.2.110.0160.00316.78
7.2.100.0170.00016.60
7.2.90.0130.01016.91
7.2.80.0110.01016.77
7.2.70.0130.00416.83
7.2.60.0070.01016.61
7.2.50.0150.00416.58
7.2.40.0110.00816.85
7.2.30.0060.00816.98
7.2.20.0030.01116.64
7.2.10.0060.00816.81
7.2.00.0070.00717.67
7.1.330.0090.00615.97
7.1.320.0100.00715.69
7.1.310.0030.00715.72
7.1.300.0080.00415.91
7.1.290.0000.01515.74
7.1.280.0120.00615.92
7.1.270.0070.00415.79
7.1.260.0000.01415.81
7.1.250.0090.00715.64
7.1.200.0060.00715.48
7.1.100.0030.00618.29
7.1.70.0000.00917.13
7.1.60.0100.01619.32
7.1.50.0000.01716.67
7.1.00.0070.07022.31
7.0.200.0050.00316.73
7.0.140.0070.07022.21
7.0.60.0300.05719.91
7.0.50.0070.07717.82
7.0.40.0070.08720.36
7.0.30.0230.08320.12
7.0.20.0270.04320.33
7.0.10.0030.05020.04
7.0.00.0070.05720.32
5.6.280.0070.07021.02
5.6.210.0030.08320.73
5.6.200.0030.08318.21
5.6.190.0100.06320.41
5.6.180.0270.05020.45
5.6.170.0370.06320.50
5.6.160.0070.07020.52
5.6.150.0070.03718.22
5.6.140.0070.04318.13
5.6.130.0030.08718.11
5.6.120.0070.03720.89
5.6.110.0230.07720.99
5.6.100.0100.03721.03
5.6.90.0070.07721.02
5.6.80.0130.07320.50
5.5.350.0170.08320.32
5.5.340.0100.07717.98
5.5.330.0000.05020.37
5.5.320.0370.04720.30
5.5.310.0270.08020.29
5.5.300.0100.08018.01
5.5.290.0070.08017.93
5.5.280.0030.09020.76
5.5.270.0100.03320.84
5.5.260.0130.07720.85
5.5.250.0130.08020.68
5.5.240.0330.06020.27
5.4.450.3130.04019.48
5.4.440.3270.04019.45
5.4.430.3170.04319.56
5.4.420.2700.04719.48
5.4.410.3030.04019.32
5.4.400.3200.03719.14
5.4.390.3330.04018.83
5.4.380.3300.03719.22
5.4.370.2930.03718.79
5.4.360.3230.03319.13
5.4.350.3230.04319.13
5.4.340.3270.04019.09
5.4.320.3200.04018.90
5.4.310.3200.03019.14
5.4.300.3170.03719.09
5.4.290.3270.03719.08
5.4.280.3100.03719.09
5.4.270.3300.04319.08
5.4.260.3030.03718.80
5.4.250.3070.04019.23
5.4.240.3300.03018.87
5.4.230.3070.04718.92
5.4.220.3330.04019.21
5.4.210.3130.03719.15
5.4.200.3230.03718.92
5.4.190.3600.04719.15
5.4.180.3100.04318.78
5.4.170.3300.04319.07
5.4.160.2970.03719.06
5.4.150.3330.04319.11
5.4.140.3330.03316.29
5.4.130.3830.03016.30
5.4.120.3200.03716.34
5.4.110.3400.03716.23
5.4.100.3200.04016.43
5.4.90.3400.03016.43
5.4.80.2830.04316.38
5.4.70.2930.03716.41
5.4.60.2870.03716.36
5.4.50.3030.03316.36
5.4.40.2900.02716.40
5.4.30.3200.03716.38
5.4.20.3300.03016.32
5.4.10.2930.04316.39
5.4.00.3130.03315.64
5.3.290.2970.04014.69
5.3.280.3100.03014.49
5.3.270.3230.04014.44
5.3.260.3030.03314.46
5.3.250.3330.03014.60
5.3.240.3400.04714.46
5.3.230.3330.04014.50
5.3.220.3300.03014.51
5.3.210.2900.04314.52
5.3.200.2970.03314.43
5.3.190.3130.04314.61
5.3.180.3370.04014.50
5.3.170.3200.03714.51
5.3.160.3070.02714.59
5.3.150.2900.04014.61
5.3.140.3100.04314.50
5.3.130.3070.03314.40
5.3.120.3370.03714.39
5.3.110.3300.03314.63
5.3.100.3270.03713.87
5.3.90.3000.03713.86
5.3.80.3400.03313.98
5.3.70.3230.04013.96
5.3.60.3270.03313.80
5.3.50.3230.03713.77
5.3.40.3070.04013.82
5.3.30.3370.03713.86
5.3.20.3230.03713.72
5.3.10.3130.04013.50
5.3.00.3130.03713.66
5.2.170.2670.02713.06
5.2.160.2530.02313.06
5.2.150.2800.03313.06
5.2.140.2500.02713.06
5.2.130.2670.02313.06
5.2.120.2800.02313.06
5.2.110.2670.02313.06
5.2.100.2600.02713.06
5.2.90.2470.03013.06
5.2.80.2730.02713.06
5.2.70.2730.03013.06
5.2.60.2770.03313.06
5.2.50.3000.03013.06
5.2.40.1730.03313.06
5.2.30.2100.02313.06
5.2.20.2630.02313.06
5.2.10.2400.02713.06
5.2.00.2030.02713.06
5.1.60.2030.02313.06
5.1.50.2370.02713.06
5.1.40.2330.03013.06
5.1.30.2400.02313.06
5.1.20.2330.02013.06
5.1.10.2130.02013.06
5.1.00.1900.02713.06
5.0.50.0970.02313.06
5.0.40.1300.02013.06
5.0.30.1000.03013.06
5.0.20.1030.01713.06
5.0.10.1000.02013.06
5.0.00.1000.03013.06
4.4.90.0970.01713.06
4.4.80.1070.01313.06
4.4.70.1000.01313.06
4.4.60.1000.01713.06
4.4.50.1070.01013.06
4.4.40.1030.02013.06
4.4.30.1000.01713.06
4.4.20.1030.01313.06
4.4.10.1030.01313.06
4.4.00.1000.02313.06
4.3.110.1000.01713.06
4.3.100.1070.01013.06
4.3.90.1030.01313.06
4.3.80.1000.02313.06
4.3.70.1170.01713.06
4.3.60.1200.01713.06
4.3.50.1000.01713.06
4.3.40.0970.02713.06
4.3.30.0470.01713.06
4.3.20.0500.02013.06
4.3.10.0470.01713.06
4.3.00.0570.01713.06

preferences:
46.09 ms | 401 KiB | 5 Q