3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array('aaa'=>'aaa', 'bcbb'=>'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)
8.3.60.0060.01318.31
8.3.50.0100.00822.04
8.3.40.0110.00718.85
8.3.30.0120.00319.14
8.3.20.0000.00820.07
8.3.10.0030.00522.13
8.3.00.0080.00022.45
8.2.180.0200.00016.38
8.2.170.0110.00722.96
8.2.160.0070.00721.00
8.2.150.0080.00024.18
8.2.140.0030.00624.66
8.2.130.0070.00026.16
8.2.120.0000.00819.36
8.2.110.0050.00519.35
8.2.100.0080.00417.91
8.2.90.0000.00819.17
8.2.80.0000.00817.97
8.2.70.0050.00317.50
8.2.60.0000.00718.05
8.2.50.0040.00418.07
8.2.40.0040.00418.16
8.2.30.0040.00418.23
8.2.20.0000.00817.78
8.2.10.0000.00817.73
8.2.00.0030.00617.73
8.1.280.0060.00925.92
8.1.270.0050.00522.09
8.1.260.0040.00426.35
8.1.250.0090.00028.09
8.1.240.0090.00021.42
8.1.230.0100.00017.51
8.1.220.0060.00317.74
8.1.210.0030.00518.77
8.1.200.0030.00617.35
8.1.190.0030.00517.13
8.1.180.0040.00418.10
8.1.170.0060.00618.49
8.1.160.0040.00421.96
8.1.150.0050.00318.59
8.1.140.0040.00417.44
8.1.130.0000.00817.75
8.1.120.0030.00617.52
8.1.110.0040.00417.33
8.1.100.0050.00217.48
8.1.90.0070.00017.45
8.1.80.0050.00317.43
8.1.70.0000.00717.40
8.1.60.0030.00617.58
8.1.50.0040.00417.51
8.1.40.0000.00817.37
8.1.30.0050.00317.65
8.1.20.0030.00517.52
8.1.10.0000.00817.43
8.1.00.0030.00517.33
8.0.300.0060.00318.77
8.0.290.0060.00316.63
8.0.280.0000.00818.43
8.0.270.0000.00717.25
8.0.260.0000.01016.74
8.0.250.0000.00716.99
8.0.240.0050.00216.86
8.0.230.0070.00016.79
8.0.220.0000.00716.90
8.0.210.0070.00016.79
8.0.200.0040.00416.95
8.0.190.0000.00716.95
8.0.180.0040.00416.93
8.0.170.0040.00416.86
8.0.160.0070.00016.94
8.0.150.0040.00416.81
8.0.140.0040.00316.90
8.0.130.0050.00013.28
8.0.120.0070.00016.76
8.0.110.0070.00016.79
8.0.100.0000.00716.75
8.0.90.0070.00016.82
8.0.80.0000.01516.86
8.0.70.0040.00416.84
8.0.60.0050.00316.87
8.0.50.0050.00216.92
8.0.30.0120.00717.17
8.0.20.0080.01017.40
8.0.10.0040.00416.95
8.0.00.0120.00516.58
7.4.330.0060.00015.00
7.4.320.0030.00316.60
7.4.300.0000.00616.56
7.4.290.0070.00416.59
7.4.280.0030.00316.63
7.4.270.0000.00716.60
7.4.260.0030.00616.49
7.4.250.0070.00016.36
7.4.240.0040.00416.54
7.4.230.0040.00416.41
7.4.220.0140.00316.56
7.4.210.0060.00916.44
7.4.200.0070.00016.33
7.4.190.0000.00716.65
7.4.160.0110.00816.31
7.4.150.0130.00417.40
7.4.140.0080.00817.86
7.4.130.0110.00816.46
7.4.120.0090.00916.53
7.4.110.0080.00816.55
7.4.100.0130.00316.61
7.4.90.0120.00616.44
7.4.80.0000.01819.39
7.4.70.0130.00316.49
7.4.60.0060.01216.56
7.4.50.0000.00516.31
7.4.40.0100.00622.77
7.4.30.0130.00316.36
7.4.00.0080.00815.05
7.3.330.0000.00513.01
7.3.320.0000.00612.96
7.3.310.0040.00416.32
7.3.300.0040.00416.24
7.3.290.0050.01416.20
7.3.280.0090.00916.28
7.3.270.0060.01017.40
7.3.260.0120.00616.35
7.3.250.0100.00716.56
7.3.240.0100.00716.33
7.3.230.0060.01216.54
7.3.210.0100.00616.42
7.3.200.0090.01319.39
7.3.190.0120.00916.44
7.3.180.0030.01316.23
7.3.170.0090.00616.63
7.3.160.0160.00016.38
7.3.120.0070.01114.75
7.3.110.0090.00714.71
7.3.100.0030.01214.87
7.3.90.0030.01114.63
7.3.80.0050.01014.77
7.3.70.0070.00614.72
7.3.60.0050.00714.70
7.3.50.0050.00914.71
7.3.40.0050.00714.84
7.3.30.0050.00814.84
7.3.20.0050.01116.62
7.3.10.0070.00816.56
7.3.00.0040.01016.52
7.2.330.0130.00316.62
7.2.320.0060.01216.65
7.2.310.0100.00616.30
7.2.300.0110.00616.40
7.2.290.0070.01416.44
7.2.250.0050.01214.96
7.2.240.0060.01215.10
7.2.230.0060.00915.20
7.2.220.0040.01014.86
7.2.210.0070.01014.83
7.2.200.0050.00914.94
7.2.190.0040.01014.93
7.2.180.0040.00914.78
7.2.170.0050.00814.83
7.2.160.0040.00814.90
7.2.150.0080.00416.75
7.2.140.0090.00616.61
7.2.130.0040.00816.87
7.2.120.0070.01016.42
7.2.110.0060.00616.70
7.2.100.0120.00016.90
7.2.90.0000.00916.86
7.2.80.0040.01116.94
7.2.70.0030.01016.74
7.2.60.0060.00716.81
7.2.50.0080.00416.66
7.2.40.0030.01016.95
7.2.30.0070.00716.72
7.2.20.0090.00617.06
7.2.10.0030.00716.67
7.2.00.0050.00917.69
7.1.330.0070.00915.71
7.1.320.0020.01115.76
7.1.310.0060.01015.83
7.1.300.0030.01115.66
7.1.290.0060.00915.71
7.1.280.0070.00615.80
7.1.270.0040.01215.83
7.1.260.0060.00715.86
7.1.250.0120.00615.54
7.1.200.0000.01215.90
7.1.100.0160.00617.95
7.1.70.0030.00516.97
7.1.60.0040.01819.82
7.1.50.0060.01616.72
7.1.00.0170.06022.40
7.0.200.0040.00416.86
7.0.140.0070.07022.00
7.0.60.0100.05019.93
7.0.50.0070.08317.91
7.0.40.0030.08719.98
7.0.30.0300.07320.17
7.0.20.0230.06720.01
7.0.10.0100.04320.00
7.0.00.0070.05020.16
5.6.280.0070.07021.09
5.6.210.0070.08720.69
5.6.200.0030.04018.16
5.6.190.0070.08020.57
5.6.180.0100.07320.46
5.6.170.0270.04020.52
5.6.160.0130.07320.61
5.6.150.0100.07718.11
5.6.140.0070.08718.11
5.6.130.0070.07018.17
5.6.120.0070.08321.04
5.6.110.0070.05320.95
5.6.100.0130.07720.95
5.6.90.0130.08320.96
5.6.80.0070.04320.29
5.5.350.0070.08020.37
5.5.340.0070.07717.98
5.5.330.0070.04020.21
5.5.320.0270.04720.51
5.5.310.0230.07020.27
5.5.300.0070.08018.01
5.5.290.0100.05317.88
5.5.280.0070.08720.68
5.5.270.0070.03720.79
5.5.260.0170.07720.66
5.5.250.0000.04320.70
5.5.240.0130.07020.15
5.4.450.1330.04019.14
5.4.440.0630.04319.21
5.4.430.0670.04319.45
5.4.420.0370.04719.13
5.4.410.0230.03719.45
5.4.400.0400.03319.22
5.4.390.0100.03318.89
5.4.380.0300.06318.59
5.4.370.0670.06318.62
5.4.360.0200.05318.56
5.4.350.0170.06318.61
5.4.340.0370.04718.65
5.4.320.0090.03612.45
5.4.310.0120.03912.45
5.4.300.0080.04012.45
5.4.290.0040.03912.45
5.4.280.0070.03612.34
5.4.270.0040.03712.35
5.4.260.0090.04912.35
5.4.250.0100.04912.35
5.4.240.0090.03412.35
5.4.230.0050.03812.34
5.4.220.0050.04612.34
5.4.210.0050.03712.34
5.4.200.0070.03812.34
5.4.190.0350.06712.33
5.4.180.0150.04812.34
5.4.170.0190.04212.34
5.4.160.0170.05012.34
5.4.150.0470.07812.33
5.4.140.0160.04212.02
5.4.130.0170.04612.00
5.4.120.0230.04211.96
5.4.110.0180.04111.96
5.4.100.0480.11511.96
5.4.90.0210.04011.96
5.4.80.0180.04211.96
5.4.70.0190.04111.95
5.4.60.0150.04311.96
5.4.50.0250.06511.96
5.4.40.0170.04311.95
5.4.30.0210.03711.94
5.4.20.0210.03911.94
5.4.10.0400.07911.94
5.4.00.0130.04811.43
5.3.290.0080.04912.80
5.3.280.0080.03512.71
5.3.270.0150.04812.72
5.3.260.0190.04712.72
5.3.250.0230.07312.71
5.3.240.0180.04312.71
5.3.230.0170.04912.71
5.3.220.0430.08612.68
5.3.210.0140.05212.68
5.3.200.0210.04612.68
5.3.190.0200.04612.68
5.3.180.0190.04212.68
5.3.170.0220.04312.67
5.3.160.0450.11712.67
5.3.150.0180.04712.67
5.3.140.0300.09712.66
5.3.130.0210.04212.66
5.3.120.0150.04612.66
5.3.110.0150.04512.66
5.3.100.0200.04212.12
5.3.90.0090.05012.09
5.3.80.0140.04412.08
5.3.70.0150.04612.07
5.3.60.0310.06112.07
5.3.50.0160.04312.00
5.3.40.0180.04212.00
5.3.30.0100.04811.96
5.3.20.0150.04511.73
5.3.10.0140.04211.70
5.3.00.0150.04111.68
5.2.170.0120.0359.18
5.2.160.0290.0519.18
5.2.150.0140.0349.18
5.2.140.0130.0349.18
5.2.130.0110.0389.14
5.2.120.0180.0359.14
5.2.110.0140.0379.14
5.2.100.0090.0379.14
5.2.90.0230.0859.14
5.2.80.0180.0299.13
5.2.70.0100.0369.13
5.2.60.0120.0359.09
5.2.50.0060.0409.05
5.2.40.0240.0549.04
5.2.30.0130.0339.01
5.2.20.0170.0309.00
5.2.10.0150.0328.92
5.2.00.0110.0368.78
5.1.60.0140.0268.07
5.1.50.0100.0328.06
5.1.40.0080.0328.05
5.1.30.0120.0348.39
5.1.20.0150.0278.41
5.1.10.0100.0348.14
5.1.00.0110.0338.14
5.0.50.0270.0686.63
5.0.40.0090.0226.48
5.0.30.0100.0346.29
5.0.20.0070.0246.26
5.0.10.0100.0216.25
5.0.00.0100.0346.23
4.4.90.0060.0194.78
4.4.80.0080.0174.75
4.4.70.0050.0204.75
4.4.60.0070.0194.75
4.4.50.0070.0174.77
4.4.40.0100.0264.70
4.4.30.0090.0184.76
4.4.20.0070.0184.85
4.4.10.0090.0164.85
4.4.00.0070.0284.76
4.3.110.0060.0184.67
4.3.100.0090.0154.66
4.3.90.0070.0174.64
4.3.80.0080.0294.59
4.3.70.0030.0214.63
4.3.60.0080.0164.63
4.3.50.0110.0144.63
4.3.40.0070.0274.54
4.3.30.0150.0383.29
4.3.20.0080.0173.27
4.3.10.0070.0183.23
4.3.00.0470.01315.60

preferences:
39.8 ms | 401 KiB | 5 Q