3v4l.org

run code in 300+ PHP versions simultaneously
<?php $count = count( array_keys( array( 'sdf' => '1', 'sdf' => '2'), '2' )); print_r( $count );

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)
8.3.40.0180.00018.57
8.3.30.0120.00618.92
8.3.20.0070.00020.09
8.3.10.0080.00622.04
8.3.00.0000.00822.33
8.2.170.0110.00422.96
8.2.160.0140.00720.84
8.2.150.0050.00324.18
8.2.140.0070.00024.66
8.2.130.0110.00426.16
8.2.120.0040.00419.23
8.2.110.0040.00420.52
8.2.100.0040.00817.46
8.2.90.0000.00819.05
8.2.80.0080.00017.97
8.2.70.0050.00317.48
8.2.60.0000.00817.93
8.2.50.0040.00418.07
8.2.40.0040.00418.03
8.2.30.0000.00717.94
8.2.20.0050.00217.70
8.2.10.0000.00717.55
8.2.00.0070.00017.66
8.1.270.0040.00422.14
8.1.260.0090.00026.35
8.1.250.0040.00428.09
8.1.240.0090.00023.69
8.1.230.0110.00019.16
8.1.220.0050.00317.74
8.1.210.0000.00818.77
8.1.200.0060.00317.35
8.1.190.0040.00417.40
8.1.180.0080.00018.67
8.1.170.0000.00818.59
8.1.160.0070.00022.00
8.1.150.0000.00718.61
8.1.140.0080.00017.50
8.1.130.0000.01017.70
8.1.120.0000.00717.52
8.1.110.0000.00817.33
8.1.100.0000.00817.48
8.1.90.0030.00317.46
8.1.80.0000.00717.33
8.1.70.0040.00417.30
8.1.60.0000.00817.46
8.1.50.0070.00017.34
8.1.40.0030.00517.51
8.1.30.0030.00517.63
8.1.20.0000.00817.66
8.1.10.0030.00517.32
8.1.00.0000.00817.23
8.0.300.0040.00418.77
8.0.290.0000.00717.04
8.0.280.0000.00718.38
8.0.270.0000.00717.20
8.0.260.0040.00416.65
8.0.250.0000.01016.88
8.0.240.0000.00716.88
8.0.230.0060.00316.91
8.0.220.0030.00316.82
8.0.210.0000.00716.84
8.0.200.0000.00816.77
8.0.190.0050.00216.94
8.0.180.0070.00016.88
8.0.170.0050.00316.91
8.0.160.0050.00316.85
8.0.150.0070.00016.73
8.0.140.0000.00816.77
8.0.130.0030.00313.30
8.0.120.0040.00416.86
8.0.110.0000.00716.74
8.0.100.0040.00416.85
8.0.90.0000.00716.92
8.0.80.0040.01216.94
8.0.70.0020.00516.88
8.0.60.0030.00316.94
8.0.50.0000.00816.89
8.0.30.0110.00816.86
8.0.20.0110.00817.40
8.0.10.0040.00416.87
8.0.00.0130.00616.72
7.4.330.0050.00015.00
7.4.320.0040.00416.50
7.4.300.0000.00616.41
7.4.290.0000.00616.39
7.4.280.0030.00316.46
7.4.270.0000.00716.44
7.4.260.0000.00816.47
7.4.250.0030.00616.52
7.4.240.0030.00516.58
7.4.230.0070.00016.39
7.4.220.0160.00316.61
7.4.210.0040.01016.54
7.4.200.0020.00516.57
7.4.190.0070.00016.65
7.4.160.0110.01116.43
7.4.150.0180.00017.40
7.4.140.0100.00817.86
7.4.130.0100.01116.40
7.4.120.0100.01216.45
7.4.110.0040.01416.56
7.4.100.0100.00716.39
7.4.90.0130.00316.46
7.4.80.0030.01419.39
7.4.70.0120.00916.29
7.4.60.0090.00916.43
7.4.50.0030.00516.52
7.4.40.0110.00422.77
7.4.30.0150.00016.43
7.4.00.0040.01415.17
7.3.330.0000.00513.08
7.3.320.0050.00013.13
7.3.310.0000.00716.25
7.3.300.0000.00716.14
7.3.290.0070.00716.21
7.3.280.0090.00716.17
7.3.270.0150.00417.40
7.3.260.0120.00616.46
7.3.250.0100.00716.36
7.3.240.0110.00716.16
7.3.230.0070.01516.39
7.3.210.0130.00416.57
7.3.200.0140.01019.39
7.3.190.0110.01116.49
7.3.180.0030.01316.13
7.3.170.0160.00716.27
7.3.160.0060.01016.36
7.3.120.0070.01014.39
7.2.330.0060.01016.59
7.2.320.0060.01216.29
7.2.310.0130.00316.53
7.2.300.0000.01716.54
7.2.290.0060.01016.25
7.2.00.0000.01819.30
7.1.100.0270.00717.45
7.1.70.0080.00016.93
7.1.60.0070.01119.82
7.1.50.0040.00816.86
7.1.00.0000.08022.54
7.0.200.0000.00716.70
7.0.140.0030.07322.04
7.0.100.0100.04019.95
7.0.90.0130.07719.94
7.0.80.0130.07719.93
7.0.70.0070.07720.00
7.0.60.0030.04720.00
7.0.50.0400.05020.25
7.0.40.0200.07320.13
7.0.30.0100.07720.09
7.0.20.0130.05020.07
7.0.10.0130.08020.09
7.0.00.0030.08320.18
5.6.280.0030.07321.02
5.6.250.0100.07020.62
5.6.240.0130.03320.62
5.6.230.0170.07320.68
5.6.220.0130.08320.67
5.6.210.0070.08320.73
5.6.200.0130.07321.07
5.6.190.0130.08021.11
5.6.180.0200.07321.05
5.6.170.0030.05720.94
5.6.160.0130.05021.02
5.6.150.0170.07721.03
5.6.140.0070.09021.11
5.6.130.0100.07720.95
5.6.120.0070.08020.94
5.6.110.0070.05021.06
5.6.100.0070.08021.00
5.6.90.0070.04720.94
5.6.80.0070.07720.33
5.6.70.0130.07320.39
5.6.60.0030.04320.40
5.6.50.0200.07020.46
5.6.40.0130.07720.45
5.6.30.0030.06020.48
5.6.20.0130.06720.36
5.6.10.0030.08020.42
5.6.00.0000.05320.38
5.5.380.0130.07320.45
5.5.370.0070.08020.36
5.5.360.0130.07020.43
5.5.350.0070.05020.45
5.5.340.0070.07720.75
5.5.330.0030.07720.63
5.5.320.0030.07320.77
5.5.310.0070.06320.75
5.5.300.0100.07020.82
5.5.290.0100.08020.90
5.5.280.0000.09020.60
5.5.270.0030.09020.84
5.5.260.0000.07720.81
5.5.250.0070.08320.57
5.5.240.0130.07020.11
5.5.230.0070.07720.11
5.5.220.0070.06720.19
5.5.210.0070.07020.10
5.5.200.0100.06020.14
5.5.190.0100.05320.14
5.5.180.0200.06020.10
5.5.160.0030.07720.23
5.5.150.0100.07720.07
5.5.140.0100.07320.22
5.5.130.0070.07720.21
5.5.120.0070.07320.26
5.5.110.0030.05020.16
5.5.100.0070.07020.17
5.5.90.0030.07320.00
5.5.80.0100.04720.06
5.5.70.0030.04720.05
5.5.60.0070.07720.08
5.5.50.0030.05720.14
5.5.40.0100.07319.95
5.5.30.0130.06720.04
5.5.20.0170.06320.04
5.5.10.0070.07720.04
5.5.00.0130.06720.07
5.4.450.0100.06319.29
5.4.440.0070.05019.35
5.4.430.0030.05019.37
5.4.420.0100.07319.39
5.4.410.0030.05019.31
5.4.400.0100.07718.91
5.4.390.0070.07019.02
5.4.380.0070.06019.10
5.4.370.0100.07019.23
5.4.360.0130.06719.12
5.4.350.0030.07319.03
5.4.340.0100.07319.08
5.4.320.0100.04319.02
5.4.310.0030.04719.16
5.4.300.0130.06719.09
5.4.290.0100.07319.23
5.4.280.0000.05719.07
5.4.270.0030.07319.05
5.4.260.0070.03718.81
5.4.250.0070.04318.78
5.4.240.0100.07719.16
5.4.230.0100.07018.89
5.4.220.0070.05019.05
5.4.210.0100.08318.77
5.4.200.0030.07018.95
5.4.190.0000.08019.09
5.4.180.0130.06018.84
5.4.170.0100.07019.04
5.4.160.0070.08019.04
5.4.150.0000.06319.20
5.4.140.0100.04716.37
5.4.130.0000.07716.27
5.4.120.0100.05016.37
5.4.110.0000.04716.27
5.4.100.0000.07016.43
5.4.90.0100.03716.26
5.4.80.0000.07716.32
5.4.70.0070.07716.30
5.4.60.0100.05016.35
5.4.50.0100.06016.18
5.4.40.0000.06016.29
5.4.30.0100.05716.39
5.4.20.0000.06316.35
5.4.10.0100.06016.23
5.4.00.0070.08015.83
5.3.290.0000.05714.64
5.3.280.0070.06314.46
5.3.270.0070.07314.46
5.3.260.0030.08014.46
5.3.250.0070.07714.46
5.3.240.0070.07714.54
5.3.230.0100.07314.41
5.3.220.0130.04014.55
5.3.210.0170.02714.55
5.3.200.0070.08014.51
5.3.190.0030.06314.51
5.3.180.0070.06714.57
5.3.170.0130.07014.49
5.3.160.0130.06714.52
5.3.150.0170.06014.55
5.3.140.0030.07714.52
5.3.130.0070.07714.53
5.3.120.0170.04014.54
5.3.110.0030.06014.40
5.3.100.0000.05313.99
5.3.90.0030.04313.85
5.3.80.0070.05713.87
5.3.70.0100.04313.79
5.3.60.0030.07713.85
5.3.50.0000.05313.85
5.3.40.0130.07013.92
5.3.30.0000.07013.88
5.3.20.0070.04013.46
5.3.10.0000.07313.64
5.3.00.0170.03713.41
5.2.170.0100.05011.13
5.2.160.0070.04310.93
5.2.150.0100.03010.97
5.2.140.0030.04711.18
5.2.130.0000.03310.96
5.2.120.0070.03011.14
5.2.110.0030.03311.08
5.2.100.0070.03710.94
5.2.90.0030.07011.09
5.2.80.0030.03711.08
5.2.70.0030.03711.11
5.2.60.0030.06311.00
5.2.50.0170.05010.95
5.2.40.0130.04010.78
5.2.30.0030.05010.80
5.2.20.0100.04011.03
5.2.10.0030.05310.80
5.2.00.0130.04010.79
5.1.60.0170.03710.02
5.1.50.0130.02010.08
5.1.40.0070.04710.07
5.1.30.0000.05310.28
5.1.20.0000.04010.40
5.1.10.0070.04010.09
5.1.00.0000.03710.14
5.0.50.0000.0378.61
5.0.40.0030.0338.23
5.0.30.0070.0308.15
5.0.20.0000.0278.27
5.0.10.0000.0308.23
5.0.00.0000.0408.25
4.4.90.0000.0338.15
4.4.80.0000.0208.15
4.4.70.0000.0308.15
4.4.60.0000.0178.15
4.4.50.0000.0378.15
4.4.40.0000.0338.15
4.4.30.0000.0178.15
4.4.20.0070.0238.15
4.4.10.0000.0278.15
4.4.00.0000.0408.15
4.3.110.0030.0278.15
4.3.100.0000.0238.15
4.3.90.0000.0378.15
4.3.80.0000.0408.15
4.3.70.0000.0178.15
4.3.60.0100.0278.15
4.3.50.0070.0238.15
4.3.40.0000.0308.15
4.3.30.0000.0178.15
4.3.20.0030.0378.15
4.3.10.0000.0208.15
4.3.00.0030.0408.15

preferences:
39.73 ms | 400 KiB | 5 Q