3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(); $a["x"] = "bb"; $a["x"][] = "cc"; print_r($a); print_r("A"); print_r(empty([])); print_r("A"); print_r(empty(array())); print_r("A"); print_r(empty($a)); print_r(array_merge([1,[2,3]],[1])); ?>

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)
8.3.60.0170.00316.49
8.3.50.0100.00822.00
8.3.40.0070.00718.85
8.3.30.0130.00318.75
8.3.20.0060.00320.24
8.3.10.0040.00423.70
8.3.00.0050.00319.38
8.2.180.0080.00818.56
8.2.170.0130.01022.96
8.2.160.0100.01019.51
8.2.150.0080.00024.18
8.2.140.0070.00024.66
8.2.130.0050.00226.16
8.2.120.0030.00717.74
8.2.110.0110.00020.37
8.2.100.0030.00918.04
8.2.90.0000.00819.01
8.2.80.0090.00017.97
8.2.70.0050.00317.38
8.2.60.0040.00417.93
8.2.50.0040.00418.07
8.2.40.0040.00419.39
8.2.30.0050.00220.52
8.2.20.0040.00417.80
8.2.10.0000.00718.02
8.2.00.0060.00318.08
8.1.280.0150.00625.92
8.1.270.0100.00023.73
8.1.260.0050.00326.35
8.1.250.0070.00028.09
8.1.240.0060.00322.57
8.1.230.0120.00017.55
8.1.220.0000.00817.74
8.1.210.0000.00718.77
8.1.200.0030.00617.48
8.1.190.0040.00417.35
8.1.180.0050.00318.10
8.1.170.0060.00318.93
8.1.160.0000.00721.96
8.1.150.0030.00518.87
8.1.140.0080.00019.57
8.1.130.0030.00317.60
8.1.120.0070.00017.41
8.1.110.0040.00417.47
8.1.100.0000.00717.37
8.1.90.0040.00417.29
8.1.80.0000.00817.43
8.1.70.0000.00717.27
8.1.60.0060.00317.59
8.1.50.0040.00417.57
8.1.40.0050.00317.52
8.1.30.0000.01117.68
8.1.20.0050.00317.55
8.1.10.0040.00417.46
8.1.00.0100.00017.53
8.0.300.0070.00018.77
8.0.290.0000.00716.63
8.0.280.0070.00018.40
8.0.270.0030.00317.26
8.0.260.0030.00317.20
8.0.250.0080.00016.86
8.0.240.0050.00316.93
8.0.230.0060.00016.89
8.0.220.0080.00016.93
8.0.210.0070.00016.88
8.0.200.0000.00616.95
8.0.190.0000.00816.93
8.0.180.0090.00016.90
8.0.170.0000.00816.94
8.0.160.0020.00516.82
8.0.150.0000.00816.68
8.0.140.0000.00716.89
8.0.130.0050.00013.32
8.0.120.0000.00816.90
8.0.110.0070.00016.92
8.0.100.0040.00316.68
8.0.90.0040.00416.76
8.0.80.0060.01216.93
8.0.70.0070.00016.73
8.0.60.0000.00716.72
8.0.50.0000.00716.80
8.0.30.0060.01216.99
8.0.20.0100.00817.40
8.0.10.0030.00617.05
8.0.00.0100.00916.93
7.4.330.0050.00015.08
7.4.320.0030.00316.47
7.4.300.0060.00016.58
7.4.290.0000.00716.52
7.4.280.0040.00416.61
7.4.270.0040.00416.52
7.4.260.0000.00716.49
7.4.250.0040.00416.50
7.4.240.0020.00516.56
7.4.230.0050.00216.51
7.4.220.0040.01316.55
7.4.210.0040.01016.54
7.4.200.0070.00016.40
7.4.160.0080.00816.43
7.4.150.0070.01117.40
7.4.140.0190.00517.86
7.4.130.0050.01516.56
7.4.120.0090.00816.62
7.4.110.0070.01016.35
7.4.100.0080.00816.46
7.4.90.0130.00316.58
7.4.80.0060.01619.39
7.4.70.0070.01016.49
7.4.60.0140.00716.30
7.4.50.0000.00816.25
7.4.40.0130.00516.37
7.4.30.0030.01416.60
7.4.00.0090.00614.90
7.3.330.0070.00013.18
7.3.320.0000.00613.08
7.3.310.0000.00716.22
7.3.300.0050.00216.33
7.3.290.0060.00916.38
7.3.280.0090.01116.35
7.3.270.0130.00617.40
7.3.260.0080.00816.54
7.3.250.0130.00616.35
7.3.240.0100.00716.46
7.3.230.0130.00716.39
7.3.210.0060.01316.41
7.3.200.0130.00316.34
7.3.190.0130.00416.49
7.3.180.0150.00616.18
7.3.170.0090.01216.48
7.3.160.0040.01316.43
7.2.330.0100.01016.29
7.2.320.0080.01716.57
7.2.310.0090.01216.63
7.2.300.0070.01016.75
7.2.290.0130.00616.59
7.2.60.0080.00616.93
7.2.00.0000.01419.15
7.1.200.0080.00315.72
7.1.100.0110.00818.23
7.1.70.0000.00817.21
7.1.60.0070.01719.43
7.1.50.0070.01316.86
7.1.00.0000.08022.36
7.0.200.0460.00314.67
7.0.60.0100.07719.93
7.0.50.0000.04717.82
7.0.40.0070.06320.21
7.0.30.0000.08719.99
7.0.20.0200.04320.11
7.0.10.0100.08020.18
7.0.00.0100.06720.08
5.6.280.0030.05321.15
5.6.210.0000.04320.71
5.6.200.0030.08318.12
5.6.190.0070.09020.56
5.6.180.0370.07320.45
5.6.170.0200.03720.49
5.6.160.0070.06720.71
5.6.150.0100.07718.18
5.6.140.0070.05018.11
5.6.130.0170.05318.20
5.6.120.0070.08020.98
5.6.110.0030.04720.99
5.6.100.0130.07721.13
5.6.90.0100.05720.87
5.6.80.0130.05320.38
5.5.350.0330.06320.32
5.5.340.0030.08717.92
5.5.330.0130.08020.11
5.5.320.0230.08020.30
5.5.310.0200.04320.32
5.5.300.0130.07017.95
5.5.290.0100.05318.02
5.5.280.0130.07320.65
5.5.270.0130.07720.79
5.5.260.0070.06020.67
5.5.250.0130.07020.58
5.5.240.0000.07020.26
5.4.450.3600.04319.27
5.4.440.0070.04019.54
5.4.430.3200.04319.41
5.4.420.3870.04719.39
5.4.410.3030.04019.42
5.4.400.3700.03318.88
5.4.390.3570.03718.85
5.4.380.3230.03719.14
5.4.370.3770.03319.15
5.4.360.3830.03319.14
5.4.350.3800.04019.07
5.4.340.3870.03319.00
5.4.320.3230.04018.88
5.4.310.3700.04019.08
5.4.300.3670.03019.13
5.4.290.3300.03318.88
5.4.280.4030.04319.19
5.4.270.2530.04019.00
5.4.260.3770.03319.06
5.4.250.3470.03719.14
5.4.240.3530.04019.08
5.4.230.3700.04018.98
5.4.220.3770.03719.07
5.4.210.3270.03318.86
5.4.200.3230.03719.13
5.4.190.3700.03319.05
5.4.180.1100.04019.17
5.4.170.0570.03719.07
5.4.160.1530.04019.06
5.4.150.3500.03719.06
5.4.140.3170.03716.42
5.4.130.2700.03016.66
5.4.120.2800.03716.31
5.4.110.2430.04316.37
5.4.100.2970.03016.54
5.4.90.2530.03716.45

preferences:
52.06 ms | 401 KiB | 5 Q