3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array('aaa'=>'aaa', 'bbb'=>'bbb'); $k = 'bbb'; if(array_key_exists($k,$arr)) $arr[$k] = 'ccc'; print_r($arr);

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)
8.3.60.0070.00716.63
8.3.50.0140.00521.93
8.3.40.0100.01018.71
8.3.30.0100.00319.14
8.3.20.0000.00820.07
8.3.10.0050.00323.66
8.3.00.0030.00519.50
8.2.180.0190.00316.49
8.2.170.0140.00022.96
8.2.160.0130.00320.39
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0090.00926.16
8.2.120.0000.00822.13
8.2.110.0030.00622.11
8.2.100.0060.00617.84
8.2.90.0040.00419.26
8.2.80.0000.00817.97
8.2.70.0000.00817.60
8.2.60.0070.00417.80
8.2.50.0030.00618.07
8.2.40.0050.00218.28
8.2.30.0000.00718.16
8.2.20.0040.00417.59
8.2.10.0000.00718.06
8.2.00.0040.00417.68
8.1.280.0070.00725.92
8.1.270.0100.00322.10
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0090.00024.01
8.1.230.0040.00719.21
8.1.220.0000.00817.74
8.1.210.0080.00018.77
8.1.200.0040.00517.23
8.1.190.0040.00417.39
8.1.180.0060.00318.10
8.1.170.0050.00318.58
8.1.160.0050.00321.99
8.1.150.0040.00418.59
8.1.140.0040.00417.37
8.1.130.0000.00717.82
8.1.120.0030.00317.41
8.1.110.0040.00417.37
8.1.100.0050.00317.32
8.1.90.0040.00417.28
8.1.80.0090.00017.34
8.1.70.0040.00417.25
8.1.60.0000.00817.55
8.1.50.0030.00517.47
8.1.40.0030.00617.46
8.1.30.0040.00417.52
8.1.20.0000.00717.55
8.1.10.0070.00017.48
8.1.00.0050.00317.45
8.0.300.0000.00818.77
8.0.290.0000.00817.04
8.0.280.0030.00318.33
8.0.270.0030.00317.19
8.0.260.0040.00416.81
8.0.250.0040.00416.80
8.0.240.0000.00716.90
8.0.230.0000.00716.90
8.0.220.0030.00316.80
8.0.210.0040.00416.84
8.0.200.0000.00616.77
8.0.190.0040.00416.92
8.0.180.0000.00716.78
8.0.170.0000.00816.77
8.0.160.0020.00516.79
8.0.150.0080.00016.82
8.0.140.0030.00516.68
8.0.130.0060.00013.34
8.0.120.0000.00716.80
8.0.110.0000.00716.69
8.0.100.0000.00716.77
8.0.90.0000.00816.68
8.0.80.0000.01516.89
8.0.70.0040.00416.70
8.0.60.0000.00716.70
8.0.50.0000.00716.78
8.0.30.0120.00917.14
8.0.20.0090.00917.40
8.0.10.0030.00517.00
8.0.00.0050.01116.77
7.4.330.0030.00315.00
7.4.320.0030.00316.52
7.4.300.0070.00016.50
7.4.290.0080.00016.57
7.4.280.0070.00016.48
7.4.270.0080.00016.60
7.4.260.0030.00316.49
7.4.250.0040.00416.43
7.4.240.0050.00316.44
7.4.230.0030.00616.57
7.4.220.0080.00916.39
7.4.210.0070.00916.54
7.4.200.0040.00416.62
7.4.190.0040.00416.56
7.4.160.0110.00516.47
7.4.150.0110.00817.40
7.4.140.0080.00917.86
7.4.130.0110.00616.49
7.4.120.0100.00716.46
7.4.110.0120.00916.64
7.4.100.0150.00316.59
7.4.90.0080.00916.46
7.4.80.0040.01419.39
7.4.70.0110.01116.46
7.4.60.0130.00316.45
7.4.50.0040.00416.56
7.4.40.0060.00622.77
7.4.30.0100.00616.45
7.4.00.0130.00315.10
7.3.330.0030.00313.18
7.3.320.0050.00012.98
7.3.310.0030.00316.11
7.3.300.0070.00016.25
7.3.290.0070.00716.21
7.3.280.0080.01016.24
7.3.270.0120.00617.40
7.3.260.0120.00916.20
7.3.250.0110.00916.38
7.3.240.0090.00616.15
7.3.230.0160.00616.39
7.3.210.0070.01016.27
7.3.200.0110.01119.39
7.3.190.0140.00716.16
7.3.180.0140.00616.20
7.3.170.0100.00716.47
7.3.160.0100.00616.21
7.3.120.0060.00814.82
7.2.330.0090.01116.40
7.2.320.0080.01116.26
7.2.310.0100.00716.60
7.2.300.0150.00316.17
7.2.290.0140.00316.54
7.2.60.0130.00016.73
7.2.00.0120.00318.99
7.1.200.0070.00715.63
7.1.100.0230.00318.16
7.1.70.0000.00817.29
7.1.60.0200.00319.33
7.1.50.0090.01216.59
7.1.00.0100.07022.44
7.0.200.0040.00416.72
7.0.140.0100.06721.99
7.0.100.0030.07719.89
7.0.90.0070.08319.88
7.0.80.0030.08320.15
7.0.70.0070.06719.97
7.0.60.0100.06719.97
7.0.50.0030.09020.38
7.0.40.0070.05320.08
7.0.30.0030.08020.20
7.0.20.0270.07020.11
7.0.10.0130.09020.05
7.0.00.0170.07320.14
5.6.280.0100.06720.85
5.6.250.0070.08020.49
5.6.240.0070.07720.48
5.6.230.0200.06320.62
5.6.220.0030.08020.73
5.6.210.0030.08720.64
5.6.200.0270.07021.17
5.6.190.0100.08021.04
5.6.180.0030.08321.05
5.6.170.0070.06320.95
5.6.160.0100.07721.05
5.6.150.0070.08320.95
5.6.140.0130.06721.01
5.6.130.0070.05020.88
5.6.120.0030.08721.02
5.6.110.0100.05020.93
5.6.100.0130.07321.07
5.6.90.0030.06021.02
5.6.80.0130.05320.39
5.6.70.0070.08020.41
5.6.60.0100.07020.31
5.6.50.0000.04320.49
5.6.40.0030.04020.39
5.6.30.0000.04320.38
5.6.20.0030.05320.43
5.6.10.0130.03720.37
5.6.00.0000.04320.42
5.5.380.0100.07720.34
5.5.370.0130.07020.49
5.5.360.0030.08720.35
5.5.350.0130.07720.36
5.5.340.0100.08020.77
5.5.330.0070.08020.92
5.5.320.0100.07320.92
5.5.310.0070.08020.86
5.5.300.0070.07320.80
5.5.290.0100.08020.87
5.5.280.0130.07320.89
5.5.270.0130.07720.63
5.5.260.0070.07720.79
5.5.250.0100.07320.75
5.5.240.0100.07720.30
5.5.230.0070.07720.29
5.5.220.0070.06720.20
5.5.210.0030.05720.21
5.5.200.0070.03720.24
5.5.190.0030.04719.98
5.5.180.0070.06320.27
5.5.160.0030.04720.15
5.5.150.0070.04320.07
5.5.140.0070.04020.25
5.5.130.0030.04020.23
5.5.120.0070.03720.26
5.5.110.0130.06020.19
5.5.100.0170.06020.04
5.5.90.0170.02720.15
5.5.80.0030.04320.14
5.5.70.0030.04720.15
5.5.60.0030.03720.09
5.5.50.0030.04320.10
5.5.40.0030.04319.95
5.5.30.0070.03319.91
5.5.20.0070.04319.91
5.5.10.0100.03019.97
5.5.00.0000.04320.04
5.4.450.0100.07719.39
5.4.440.0100.08319.29
5.4.430.0100.07319.55
5.4.420.0170.06719.22
5.4.410.0030.08019.43
5.4.400.0130.05019.04
5.4.390.0130.07319.05
5.4.380.0130.06319.08
5.4.370.0070.06318.97
5.4.360.0100.05718.95
5.4.350.0000.04319.02
5.4.340.0000.04319.13
5.4.320.0070.03718.90
5.4.310.0000.04019.06
5.4.300.0070.03719.21
5.4.290.0000.04718.95
5.4.280.0070.05319.14
5.4.270.0100.06319.05
5.4.260.0000.08319.23
5.4.250.0100.07018.83
5.4.240.0100.04719.23
5.4.230.0100.03018.88
5.4.220.0000.04318.98
5.4.210.0030.03319.15
5.4.200.0000.04019.09
5.4.190.0030.08318.78
5.4.180.0070.03018.96
5.4.170.0030.04318.97
5.4.160.0000.04019.02
5.4.150.0070.03719.05
5.4.140.0030.03716.36
5.4.130.0100.02716.37
5.4.120.0030.04016.37
5.4.110.0100.03016.34
5.4.100.0000.04016.41
5.4.90.0030.03316.31
5.4.80.0000.03716.34
5.4.70.0030.03316.32
5.4.60.0070.03316.39
5.4.50.0030.03316.21
5.4.40.0030.03716.33
5.4.30.0030.03716.36
5.4.20.0070.03316.30
5.4.10.0030.03316.39
5.4.00.0000.04015.73
5.3.290.0070.04014.65
5.3.280.0000.03714.41
5.3.270.0000.04014.51
5.3.260.0070.03314.46
5.3.250.0030.03714.45
5.3.240.0030.03714.46
5.3.230.0030.03714.59
5.3.220.0030.03714.55
5.3.210.0000.03714.55
5.3.200.0000.06714.52
5.3.190.0030.03714.39
5.3.180.0000.05314.54
5.3.170.0000.06014.54
5.3.160.0130.04714.57
5.3.150.0030.03714.42
5.3.140.0100.03014.54
5.3.130.0170.02714.54
5.3.120.0000.04014.36
5.3.110.0030.03714.48
5.3.100.0030.03713.89
5.3.90.0100.03013.98
5.3.80.0030.08013.99
5.3.70.0030.03713.77
5.3.60.0070.03014.02
5.3.50.0000.05713.89
5.3.40.0030.07313.90
5.3.30.0130.05713.87
5.3.20.0070.03713.63
5.3.10.0030.06313.51
5.3.00.0170.06313.59
5.2.170.0030.04711.18
5.2.160.0070.05711.14
5.2.150.0070.05311.06
5.2.140.0130.04310.93
5.2.130.0130.02311.10
5.2.120.0070.05010.96
5.2.110.0070.04011.09
5.2.100.0000.04711.02
5.2.90.0000.05010.90
5.2.80.0030.03310.94
5.2.70.0100.04311.01
5.2.60.0070.02711.04
5.2.50.0070.03311.02
5.2.40.0000.03010.97
5.2.30.0030.03710.96
5.2.20.0070.05310.96
5.2.10.0030.04710.90
5.2.00.0100.05710.89
5.1.60.0070.05010.89
5.1.50.0070.02710.89
5.1.40.0070.05010.89
5.1.30.0030.03010.89
5.1.20.0100.05310.89
5.1.10.0000.04710.89
5.1.00.0030.05010.89
5.0.50.0070.04310.89
5.0.40.0000.04710.89
5.0.30.0000.06310.89
5.0.20.0070.04010.89
5.0.10.0030.04310.89
5.0.00.0070.04310.89
4.4.90.0000.02710.89
4.4.80.0030.01710.89
4.4.70.0030.02310.89
4.4.60.0030.03310.89
4.4.50.0030.03310.89
4.4.40.0100.04010.89
4.4.30.0030.03310.89
4.4.20.0030.03310.89
4.4.10.0030.03710.89
4.4.00.0030.05310.89
4.3.110.0030.03710.89
4.3.100.0000.02310.89
4.3.90.0070.02710.89
4.3.80.0000.05010.89
4.3.70.0070.03010.89
4.3.60.0070.03310.89
4.3.50.0030.03310.89
4.3.40.0070.05010.89
4.3.30.0000.03710.89
4.3.20.0000.04010.89
4.3.10.0030.03310.89
4.3.00.0000.04010.89

preferences:
41.09 ms | 401 KiB | 5 Q