3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array('key1' => 'value1'); $key = 'key1'; var_dump($arr[$key]); var_dump($arr{$key});

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)
8.3.60.0110.00416.71
8.3.50.0140.00522.05
8.3.40.0070.01018.45
8.3.30.0110.00418.59
8.3.20.0080.00018.64
8.3.10.0040.00420.40
8.3.00.0000.00723.53
8.2.180.0180.00016.50
8.2.170.0130.00722.96
8.2.160.0130.00320.52
8.2.150.0030.00524.18
8.2.140.0040.00424.66
8.2.130.0050.00226.16
8.2.120.0030.00519.23
8.2.110.0070.00322.27
8.2.100.0040.00717.78
8.2.90.0070.00018.92
8.2.80.0000.00717.97
8.2.70.0060.00317.38
8.2.60.0050.00317.67
8.2.50.0000.00818.07
8.2.40.0070.00017.96
8.2.30.0000.00819.73
8.2.20.0040.00417.40
8.2.10.0000.00819.34
8.2.00.0040.00417.52
8.1.270.0040.00423.99
8.1.260.0080.00626.35
8.1.250.0000.00728.09
8.1.240.0100.00722.35
8.1.230.0110.00021.03
8.1.220.0060.00318.77
8.1.210.0000.00818.90
8.1.200.0090.00017.22
8.1.190.0030.00617.41
8.1.180.0090.00018.10
8.1.170.0000.00718.74
8.1.160.0070.00018.77
8.1.150.0040.00418.62
8.1.140.0040.00417.26
8.1.130.0000.00717.71
8.1.120.0030.00317.43
8.1.110.0040.00417.26
8.1.100.0080.00017.22
8.1.90.0050.00317.37
8.1.80.0040.00417.29
8.1.70.0000.00817.22
8.1.60.0000.01217.45
8.1.50.0000.00817.22
8.1.40.0070.00017.33
8.1.30.0000.00717.49
8.1.20.0040.00417.54
8.1.10.0040.00417.28
8.1.00.0000.00717.33
8.0.300.0080.00019.76
8.0.290.0040.00416.63
8.0.280.0000.00618.42
8.0.270.0040.00417.13
8.0.260.0030.00316.74
8.0.250.0050.00316.80
8.0.240.0040.00716.85
8.0.230.0030.00316.78
8.0.220.0030.00316.77
8.0.210.0000.00716.84
8.0.200.0000.00716.77
8.0.190.0030.00316.92
8.0.180.0000.00716.88
8.0.170.0000.00716.85
8.0.160.0040.00416.80
8.0.150.0040.00416.71
8.0.140.0030.00416.82
8.0.130.0040.00313.26
8.0.120.0000.00816.79
8.0.110.0050.00316.89
8.0.100.0000.00816.82
8.0.90.0000.00716.68
8.0.80.0130.00716.85
8.0.70.0070.00016.67
8.0.60.0040.00416.71
8.0.50.0030.00516.70
8.0.30.0070.01316.91
8.0.20.0080.01017.40
8.0.10.0000.00716.96
8.0.00.0120.00916.49
7.4.330.0000.00514.76
7.4.320.0060.00016.43
7.4.300.0030.00316.53
7.4.290.0070.00016.45
7.4.280.0000.00816.55
7.4.270.0030.00316.38
7.4.260.0000.00513.32
7.4.250.0040.00416.51
7.4.240.0070.00016.42
7.4.230.0070.00016.49
7.4.220.0060.01216.53
7.4.210.0100.00516.54
7.4.200.0070.00016.54
7.4.190.0030.00316.39
7.4.160.0160.00016.59
7.4.150.0080.00817.40
7.4.140.0130.00517.86
7.4.130.0160.00216.43
7.4.120.0110.00716.54
7.4.110.0070.01116.35
7.4.100.0100.00716.27
7.4.90.0060.01216.43
7.4.80.0100.00719.37
7.4.70.0130.00316.31
7.4.60.0130.00316.67
7.4.50.0000.00816.36
7.4.40.0050.01022.27
7.4.30.0030.01516.49
7.4.00.0040.00414.86
7.3.330.0050.00013.10
7.3.320.0020.00212.90
7.3.310.0000.00716.02
7.3.300.0060.00016.16
7.3.290.0100.01016.26
7.3.280.0050.01016.19
7.3.270.0080.01517.40
7.3.260.0110.00818.24
7.3.250.0090.01216.30
7.3.240.0060.00916.25
7.3.230.0070.01316.39
7.3.210.0090.00616.47
7.3.200.0130.00319.39
7.3.190.0090.00916.54
7.3.180.0100.00616.47
7.3.170.0070.01016.27
7.3.160.0100.00716.45
7.3.120.0040.01114.50
7.3.10.0170.00416.38
7.3.00.0080.01216.59
7.2.330.0100.00716.64
7.2.320.0130.00916.20
7.2.310.0090.01216.51
7.2.300.0030.01416.45
7.2.290.0080.00816.39
7.2.130.0140.01116.84
7.2.120.0000.01616.72
7.2.110.0110.00716.59
7.2.100.0050.00516.80
7.2.90.0000.01416.60
7.2.80.0160.00916.54
7.2.70.0160.00316.60
7.2.60.0110.00516.87
7.2.50.0100.00716.68
7.2.40.0080.00416.56
7.2.30.0000.01316.66
7.2.20.0060.00516.39
7.2.10.0060.00316.60
7.2.00.0040.00916.93
7.1.250.0090.00615.66
7.1.200.0080.00415.75
7.1.70.0040.00417.22
7.1.60.0100.01319.40
7.1.50.0080.01216.91
7.1.00.0070.03322.45
7.0.200.0040.00416.70
7.0.140.0030.07322.13
7.0.60.0000.04319.98
7.0.50.0130.04717.82
7.0.40.0170.07017.80
7.0.30.0030.05317.64
7.0.20.0100.07717.78
7.0.10.0000.06717.72
7.0.00.0030.04317.72
5.6.280.0030.09021.11
5.6.210.0030.07020.76
5.6.200.0100.07718.15
5.6.190.0070.08318.11
5.6.180.0070.08718.19
5.6.170.0000.04718.18
5.6.160.0030.08318.12
5.6.150.0100.06018.18
5.6.140.0100.07718.20
5.6.130.0170.06318.21
5.6.120.0030.05718.27
5.6.110.0070.04718.20
5.6.100.0030.07018.21
5.6.90.0070.05018.10
5.6.80.0000.05317.61
5.6.70.0030.08317.50
5.6.60.0100.03317.55
5.6.50.0000.08717.53
5.6.40.0030.04017.52
5.6.30.0170.03317.52
5.6.20.0030.03717.43
5.6.10.0030.03717.50
5.6.00.0030.04017.43
5.5.350.0130.07320.44
5.5.340.0000.04717.93
5.5.330.0100.08018.00
5.5.320.0100.04318.02
5.5.310.0130.07318.02
5.5.300.0000.08017.95
5.5.290.0130.07317.96
5.5.280.0070.08018.00
5.5.270.0170.07317.96
5.5.260.0070.07717.91
5.5.250.0100.06717.73
5.5.240.0170.07017.35
5.5.230.0000.04317.36
5.5.220.0030.05017.36
5.5.210.0030.05717.41
5.5.200.0070.03317.36
5.5.190.0070.03317.36
5.5.180.0030.04317.27
5.5.160.0000.04017.27
5.5.150.0000.04017.38
5.5.140.0070.04017.35
5.5.130.0100.03017.32
5.5.120.0100.03017.23
5.5.110.0070.05717.36
5.5.100.0030.04317.28
5.5.90.0070.03317.26
5.5.80.0030.03717.23
5.5.70.0100.04017.25
5.5.60.0100.03717.16
5.5.50.0030.03717.15
5.5.40.0030.03717.13
5.5.30.0030.03717.19
5.5.20.0030.03717.21
5.5.10.0000.04017.19
5.5.00.0030.03717.25
5.4.450.0100.08019.43
5.4.440.0170.06019.32
5.4.430.0070.07719.53
5.4.420.0070.04019.30
5.4.410.0030.08319.22
5.4.400.0100.04019.12
5.4.390.0070.06719.11
5.4.380.0070.03319.12
5.4.370.0070.04319.03
5.4.360.0030.04019.11
5.4.350.0030.04018.98
5.4.340.0100.03018.95
5.4.320.0070.03319.01
5.4.310.0030.03718.98
5.4.300.0030.04318.98
5.4.290.0030.03719.09
5.4.280.0000.04018.82
5.4.270.0030.04019.09
5.4.260.0070.03719.07
5.4.250.0100.03018.97
5.4.240.0000.04018.98
5.4.230.0000.04018.96
5.4.220.0030.03719.02
5.4.210.0030.03719.00
5.4.200.0030.03718.93
5.4.190.0000.04019.20
5.4.180.0000.04018.97
5.4.170.0030.03719.06
5.4.160.0070.03319.19
5.4.150.0000.04018.96
5.4.140.0000.03716.26
5.4.130.0000.03716.30
5.4.120.0030.03316.26
5.4.110.0030.04716.38
5.4.100.0030.04716.43
5.4.90.0070.03316.27
5.4.80.0070.05016.42
5.4.70.0000.07316.37
5.4.60.0030.07016.50
5.4.50.0030.07316.38
5.4.40.0170.06316.45
5.4.30.0000.07716.22
5.4.20.0070.04316.36
5.4.10.0130.04016.30
5.4.00.0170.05715.73
5.3.290.0030.03714.52
5.3.280.0030.03714.57
5.3.270.0030.03714.60
5.3.260.0030.03714.54
5.3.250.0000.03714.59
5.3.240.0030.03314.43
5.3.230.0030.03714.45
5.3.220.0100.03014.50
5.3.210.0000.05714.42
5.3.200.0100.05314.38
5.3.190.0070.03714.54
5.3.180.0100.03014.38
5.3.170.0100.04014.64
5.3.160.0030.07014.48
5.3.150.0100.04314.54
5.3.140.0100.06714.48
5.3.130.0070.07014.38
5.3.120.0070.05014.48
5.3.110.0000.08314.62
5.3.100.0000.08313.95
5.3.90.0030.08013.98
5.3.80.0070.05313.98
5.3.70.0070.05713.98
5.3.60.0070.04713.77
5.3.50.0130.03013.91
5.3.40.0070.07313.70
5.3.30.0030.06713.89
5.3.20.0100.07313.66
5.3.10.0000.05713.58
5.3.00.0130.06713.60
5.2.170.0070.06011.11
5.2.160.0030.03311.07
5.2.150.0100.05710.97
5.2.140.0070.06010.96
5.2.130.0000.06011.09
5.2.120.0000.05011.02
5.2.110.0030.03711.12
5.2.100.0000.05311.13
5.2.90.0000.06011.01
5.2.80.0030.05011.09
5.2.70.0070.05311.23
5.2.60.0070.06010.98
5.2.50.0030.04710.87
5.2.40.0030.05310.94
5.2.30.0030.04311.11
5.2.20.0100.06010.94
5.2.10.0030.06010.86
5.2.00.0000.04010.55
5.1.60.0000.0439.94
5.1.50.0000.0609.97
5.1.40.0070.0509.93
5.1.30.0030.05710.21
5.1.20.0000.06310.19
5.1.10.0030.06010.12
5.1.00.0070.04010.11
5.0.50.0070.0479.08
5.0.40.0070.0439.08
5.0.30.0030.0409.08
5.0.20.0000.0539.08
5.0.10.0030.0279.08
5.0.00.0030.0379.08
4.4.90.0030.0339.08
4.4.80.0070.0209.08
4.4.70.0030.0239.08
4.4.60.0070.0279.08
4.4.50.0070.0309.08
4.4.40.0000.0479.08
4.4.30.0030.0379.08
4.4.20.0000.0409.08
4.4.10.0000.0279.08
4.4.00.0000.0609.08
4.3.110.0000.0379.08
4.3.100.0030.0379.08
4.3.90.0070.0309.08
4.3.80.0030.0539.08
4.3.70.0030.0309.08
4.3.60.0070.0309.08
4.3.50.0100.0109.08
4.3.40.0030.0409.08
4.3.30.0000.0409.08
4.3.20.0030.0379.08
4.3.10.0000.0239.08
4.3.00.0000.0309.08

preferences:
57.28 ms | 400 KiB | 5 Q