3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = [ 'blah' => 1, 'foo' => 2, ]; $key = 'foo'; $val = $arr[$key] ?? null; echo $val; var_dump($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)
8.3.60.0070.00716.38
8.3.50.0330.00521.98
8.3.40.0110.00418.52
8.3.30.0060.00918.72
8.3.20.0080.00020.21
8.3.10.0070.00023.36
8.3.00.0030.00617.93
8.2.180.0060.01218.41
8.2.170.0070.01322.96
8.2.160.0200.00020.44
8.2.150.0000.00924.18
8.2.140.0040.01424.66
8.2.130.0040.00426.16
8.2.120.0100.00017.75
8.2.110.0070.00422.29
8.2.100.0040.00819.77
8.2.90.0050.00319.26
8.2.80.0040.00417.97
8.2.70.0040.00417.63
8.2.60.0000.00817.92
8.2.50.0050.00318.07
8.2.40.0070.00019.25
8.2.30.0070.00418.14
8.2.20.0040.00417.67
8.2.10.0070.00018.11
8.2.00.0040.00418.03
8.1.280.0070.01025.92
8.1.270.0030.00522.04
8.1.260.0000.01026.35
8.1.250.0070.00028.09
8.1.240.0030.00622.72
8.1.230.0040.00717.48
8.1.220.0000.00817.80
8.1.210.0000.00918.77
8.1.200.0060.00317.00
8.1.190.0060.00317.10
8.1.180.0060.00318.10
8.1.170.0000.00918.46
8.1.160.0000.00821.82
8.1.150.0000.00718.92
8.1.140.0000.00817.37
8.1.130.0000.00717.56
8.1.120.0060.00317.41
8.1.110.0030.00517.28
8.1.100.0000.00717.39
8.1.90.0070.00017.39
8.1.80.0040.00417.41
8.1.70.0030.00317.39
8.1.60.0040.00417.47
8.1.50.0000.00817.57
8.1.40.0100.00017.48
8.1.30.0030.00517.64
8.1.20.0030.00617.65
8.1.10.0070.00017.60
8.1.00.0040.00417.50
8.0.300.0040.00418.77
8.0.290.0000.00716.75
8.0.280.0000.00718.39
8.0.270.0030.00317.25
8.0.260.0000.00817.11
8.0.250.0050.00316.92
8.0.240.0080.00016.94
8.0.230.0030.00316.84
8.0.220.0020.00516.85
8.0.210.0070.00016.79
8.0.200.0030.00316.77
8.0.190.0040.00416.86
8.0.180.0030.00516.81
8.0.170.0000.00716.69
8.0.160.0000.00816.82
8.0.150.0000.00716.78
8.0.140.0000.00716.84
8.0.130.0080.00013.29
8.0.120.0000.00816.69
8.0.110.0040.00416.79
8.0.100.0040.00416.88
8.0.90.0000.00716.62
8.0.80.0090.00916.89
8.0.70.0030.00316.71
8.0.60.0000.00816.76
8.0.50.0000.00716.77
8.0.30.0100.00917.17
8.0.20.0130.00817.40
8.0.10.0040.00417.00
8.0.00.0110.00716.71
7.4.330.0050.00015.08
7.4.320.0000.00616.45
7.4.300.0000.00616.43
7.4.290.0030.00316.54
7.4.280.0040.00416.53
7.4.270.0030.00316.44
7.4.260.0100.00016.44
7.4.250.0050.00216.44
7.4.240.0000.00716.48
7.4.230.0040.00416.34
7.4.220.0120.01216.36
7.4.210.0070.00816.43
7.4.200.0070.00016.30
7.4.160.0040.01116.41
7.4.150.0060.01217.40
7.4.140.0140.01017.86
7.4.130.0060.01216.42
7.4.120.0110.00616.52
7.4.110.0060.01216.32
7.4.100.0110.00716.37
7.4.90.0060.01116.28
7.4.80.0120.00619.39
7.4.70.0030.01416.55
7.4.60.0110.01116.48
7.4.50.0050.00316.32
7.4.40.0070.01516.72
7.4.30.0140.01216.27
7.4.10.0150.00614.66
7.4.00.0050.00914.87
7.3.330.0000.00512.97
7.3.320.0000.00512.97
7.3.310.0040.00416.19
7.3.300.0030.00316.30
7.3.290.0030.00316.24
7.3.280.0090.01016.23
7.3.270.0130.00517.40
7.3.260.0080.00816.23
7.3.250.0130.00516.46
7.3.240.0100.00616.32
7.3.230.0140.00316.39
7.3.210.0100.00616.29
7.3.200.0130.00316.56
7.3.190.0110.01116.37
7.3.180.0090.00616.34
7.3.170.0160.00016.27
7.3.160.0090.00616.44
7.3.130.0030.01314.78
7.3.120.0070.01314.57
7.3.110.0090.00415.09
7.3.100.0040.01114.95
7.3.90.0030.00614.77
7.3.80.0030.00714.77
7.3.70.0070.00314.47
7.3.60.0000.01414.60
7.3.50.0030.01014.82
7.3.40.0110.00314.46
7.3.30.0070.00714.82
7.3.20.0080.00316.72
7.3.10.0060.00916.46
7.3.00.0000.00916.69
7.2.330.0070.01116.59
7.2.320.0110.00716.56
7.2.310.0100.00616.54
7.2.300.0030.01516.34
7.2.290.0070.01016.66
7.2.260.0080.01215.12
7.2.250.0130.00315.09
7.2.240.0030.01015.18
7.2.230.0060.00615.18
7.2.220.0070.00715.09
7.2.210.0060.00615.19
7.2.200.0110.00714.61
7.2.190.0070.00715.09
7.2.180.0070.00714.70
7.2.170.0070.00714.97
7.2.160.0000.00914.90
7.2.150.0070.00716.71
7.2.140.0070.01016.95
7.2.130.0000.01216.54
7.2.120.0000.01416.87
7.2.110.0040.00716.92
7.2.100.0070.00716.64
7.2.90.0060.00616.89
7.2.80.0030.00916.83
7.2.70.0100.00716.65
7.2.60.0070.00716.75
7.2.50.0090.00016.82
7.2.40.0000.01316.83
7.2.30.0070.01316.80
7.2.20.0070.00416.97
7.2.10.0030.01616.85
7.2.00.0070.01118.11
7.1.330.0030.01015.58
7.1.320.0120.00315.81
7.1.310.0080.00415.68
7.1.300.0030.00915.89
7.1.290.0090.00615.69
7.1.280.0040.01115.81
7.1.270.0060.00315.53
7.1.260.0110.00415.71
7.1.250.0060.00616.02
7.1.240.0030.00615.91
7.1.230.0070.00715.69
7.1.220.0030.01015.52
7.1.210.0070.00716.00
7.1.200.0070.00515.82
7.1.190.0030.01015.76
7.1.180.0060.00615.63
7.1.170.0000.01515.92
7.1.160.0000.00915.81
7.1.150.0000.01515.76
7.1.140.0040.00415.82
7.1.130.0100.00715.85
7.1.120.0140.00315.88
7.1.110.0100.00615.97
7.1.100.0060.00516.95
7.1.90.0000.01415.68
7.1.80.0110.00715.85
7.1.70.0100.00316.42
7.1.60.0050.00817.58
7.1.50.0110.00616.27
7.1.40.0100.00315.79
7.1.30.0040.01115.85
7.1.20.0030.01315.69
7.1.10.0100.00315.62
7.1.00.0050.04218.91
7.0.330.0060.00615.39
7.0.320.0030.00515.18
7.0.310.0030.01015.25
7.0.300.0070.00715.46
7.0.290.0070.00715.20
7.0.280.0070.00715.45
7.0.270.0110.00415.38
7.0.260.0030.01315.39
7.0.250.0040.00815.51
7.0.240.0070.00715.44
7.0.230.0000.00915.60
7.0.220.0040.01115.55
7.0.210.0000.01315.50
7.0.200.0140.00815.08
7.0.190.0040.00815.58
7.0.180.0030.01015.49
7.0.170.0080.00615.34
7.0.160.0070.01015.40
7.0.150.0090.00315.55
7.0.140.0080.00315.41
7.0.130.0100.00315.34
7.0.120.0060.00915.59
7.0.110.0030.00715.32
7.0.100.0070.00315.15
7.0.90.0000.01015.43
7.0.80.0050.00515.53
7.0.70.0070.00415.50
7.0.60.0120.03817.55
7.0.50.0110.04116.56
7.0.40.0050.03816.84
7.0.30.0200.03216.82
7.0.20.0130.04316.73
7.0.10.0170.03916.76
7.0.00.0070.04316.82
5.6.400.0060.00614.32
5.6.390.0080.00813.82
5.6.380.0110.00314.21
5.6.370.0100.00714.28
5.6.360.0060.01014.43
5.6.350.0100.01013.92
5.6.340.0120.00313.99
5.6.330.0070.01014.36
5.6.320.0000.01414.10
5.6.310.0000.00914.07
5.6.300.0090.00614.21
5.6.290.0060.00914.20
5.6.280.0070.02217.54
5.6.270.0070.00714.13
5.6.260.0080.00414.23
5.6.250.0030.01214.10
5.6.240.0040.01114.06
5.6.230.0050.00514.15
5.6.220.0040.01114.16
5.6.210.0100.04417.24
5.6.200.0030.02616.27
5.6.190.0120.04117.41
5.6.180.0150.05117.42
5.6.170.0200.03117.33
5.6.160.0100.04217.36
5.6.150.0070.04216.21
5.6.140.0110.03516.15
5.6.130.0080.04016.21
5.6.120.0050.04717.64
5.6.110.0050.03217.51
5.6.100.0080.04217.67
5.6.90.0080.03417.68
5.6.80.0120.04017.31
5.6.70.2290.02117.33
5.6.60.0160.00313.84
5.6.50.0070.00714.09
5.6.40.0060.00613.90
5.6.30.0030.01313.89
5.6.20.0060.00914.00
5.6.10.0080.00014.15
5.6.00.0060.00314.02
5.5.380.0170.00014.25
5.5.370.0000.00914.12
5.5.360.0070.00714.11
5.5.350.0050.04917.26
5.5.340.0030.04516.20
5.5.330.0130.02117.06
5.5.320.0250.03617.18
5.5.310.0120.02717.30
5.5.300.0020.03115.90
5.5.290.0020.02716.10
5.5.280.0090.02217.42
5.5.270.0070.03717.35
5.5.260.0050.03617.48
5.5.250.0090.04117.25
5.5.240.0170.03517.14
5.5.230.0030.00614.15
5.5.220.0070.00713.94
5.5.210.0190.00013.88
5.5.200.0030.00913.97
5.5.190.0100.00313.64
5.5.180.0060.00913.86
5.5.170.0060.00914.17
5.5.160.0110.00313.89
5.5.150.0060.00613.64
5.5.140.0040.00813.96
5.5.130.0030.00614.16
5.5.120.0060.00313.56
5.5.110.0080.00314.19
5.5.100.0030.01013.68
5.5.90.0110.00013.96
5.5.80.0030.00913.95
5.5.70.0030.01013.96
5.5.60.0030.01014.12
5.5.50.0060.00614.15
5.5.40.0040.01114.04
5.5.30.0100.00013.57
5.5.20.0090.00914.03
5.5.10.0000.01313.61
5.5.00.0040.00714.14
5.4.450.0350.03815.07
5.4.440.0550.02815.18
5.4.430.0430.02615.09
5.4.420.0400.03615.37
5.4.410.0420.03115.27
5.4.400.0470.03014.86
5.4.390.0480.02514.71
5.4.380.0550.02114.92
5.4.370.0470.02515.02
5.4.360.0440.03215.12
5.4.350.0490.02914.84
5.4.340.0400.03514.99
5.4.330.0040.00810.75
5.4.320.0420.03015.01
5.4.310.0370.03614.78
5.4.300.0380.03514.92
5.4.290.0350.03315.13
5.4.280.0420.03214.86
5.4.270.0500.02014.99
5.4.260.0420.03214.98
5.4.250.0420.03015.09
5.4.240.0450.02714.81
5.4.230.0410.03014.99
5.4.220.0420.03514.96
5.4.210.0390.03314.88
5.4.200.0400.03014.99
5.4.190.0410.03415.05
5.4.180.0380.03314.93
5.4.170.0380.03114.75
5.4.160.0440.02714.66
5.4.150.0470.02815.00
5.4.140.0370.03113.88
5.4.130.0490.02613.63
5.4.120.0390.02913.62
5.4.110.0400.02813.46
5.4.100.0370.03313.59
5.4.90.0370.03013.53
5.4.80.0500.02813.58
5.4.70.0160.03813.66
5.4.60.0090.02413.47
5.4.50.0050.03513.52
5.4.40.0030.04113.65
5.4.30.0040.03813.46
5.4.20.0150.03413.64
5.4.10.0090.00610.80
5.4.00.0100.00310.83

preferences:
68.11 ms | 401 KiB | 5 Q