3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ['i' => 'a']; var_dump($a['i'] ?: 'empty'); var_dump($a['i'] ?? 'empty'); var_dump($a['j'] ?: 'empty'); var_dump($a['j'] ?? 'empty'); var_dump($a['j'] ?? $a['i'] ?: 'empty');

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)
8.3.40.0150.00018.80
8.3.30.0040.01118.77
8.3.20.0040.00420.33
8.3.10.0040.00423.65
8.3.00.0040.00419.79
8.2.170.0070.00722.96
8.2.160.0100.01020.39
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0030.00619.27
8.2.120.0040.00426.35
8.2.110.0060.00320.52
8.2.100.0090.00317.84
8.2.90.0000.00817.75
8.2.80.0040.00418.90
8.2.70.0040.00419.28
8.2.60.0000.00817.75
8.2.50.0030.00517.75
8.2.40.0000.00817.75
8.2.30.0060.00317.92
8.2.20.0030.00617.80
8.2.10.0040.00418.06
8.2.00.0000.00818.00
8.1.270.0060.00320.33
8.1.260.0080.00028.09
8.1.250.0030.01228.09
8.1.240.0060.00319.23
8.1.230.0030.00717.83
8.1.220.0080.00017.74
8.1.210.0040.00418.77
8.1.200.0030.00517.36
8.1.190.0000.00817.23
8.1.180.0000.00918.10
8.1.170.0060.00317.62
8.1.160.0030.00518.89
8.1.150.0040.00418.95
8.1.140.0040.00419.51
8.1.130.0020.00517.77
8.1.120.0000.00717.48
8.1.110.0000.00717.46
8.1.100.0000.00817.43
8.1.90.0060.00317.35
8.1.80.0070.00017.33
8.1.70.0000.00717.41
8.1.60.0000.00717.49
8.1.50.0080.00017.54
8.1.40.0000.00917.41
8.1.30.0040.00417.68
8.1.20.0000.00817.69
8.1.10.0000.00717.50
8.1.00.0030.00517.30
8.0.300.0000.00818.77
8.0.290.0040.00416.75
8.0.280.0030.00318.02
8.0.270.0040.00417.96
8.0.260.0020.00517.15
8.0.250.0000.00716.88
8.0.240.0040.00417.00
8.0.230.0080.00016.95
8.0.220.0030.00316.96
8.0.210.0070.00016.91
8.0.200.0000.00717.04
8.0.190.0030.00616.91
8.0.180.0000.00816.95
8.0.170.0040.00416.82
8.0.160.0030.00316.91
8.0.150.0020.00516.82
8.0.140.0040.00416.94
8.0.130.0030.00313.29
8.0.120.0080.00016.97
8.0.110.0040.00416.89
8.0.100.0030.00517.00
8.0.90.0000.00816.73
8.0.80.0140.00316.84
8.0.70.0070.00016.91
8.0.60.0000.00717.00
8.0.50.0000.00716.86
8.0.30.0110.00717.16
8.0.20.0090.00917.40
8.0.10.0070.00017.02
8.0.00.0080.01216.68
7.4.330.0050.00016.84
7.4.320.0000.00616.44
7.4.300.0060.00016.55
7.4.290.0070.00016.52
7.4.280.0050.00316.55
7.4.270.0000.00716.63
7.4.260.0000.00716.55
7.4.250.0040.00416.50
7.4.240.0020.00516.49
7.4.230.0030.00316.39
7.4.220.0140.00316.58
7.4.210.0140.00016.48
7.4.200.0050.00216.52
7.4.160.0060.00916.34
7.4.150.0070.01117.40
7.4.140.0180.00517.86
7.4.130.0110.00916.51
7.4.120.0030.01416.51
7.4.110.0080.00816.34
7.4.100.0150.00716.43
7.4.90.0140.00416.63
7.4.80.0160.00619.39
7.4.70.0070.01016.52
7.4.60.0040.01216.38
7.4.50.0000.01216.42
7.4.40.0120.00416.45
7.4.30.0120.00916.65
7.4.00.0070.01015.03
7.3.330.0000.00513.14
7.3.320.0030.00313.11
7.3.310.0000.00716.27
7.3.300.0000.00716.31
7.3.290.0090.00816.30
7.3.280.0070.00916.31
7.3.270.0040.01517.40
7.3.260.0120.01216.37
7.3.250.0100.00816.36
7.3.240.0080.00916.35
7.3.230.0090.01216.43
7.3.210.0100.00716.31
7.3.200.0100.01016.13
7.3.190.0100.00516.46
7.3.180.0100.01016.28
7.3.170.0080.01016.32
7.3.160.0070.01016.26
7.3.120.0100.00914.50
7.3.110.0050.01114.94
7.3.100.0050.01014.71
7.3.90.0090.00614.96
7.3.80.0030.01014.88
7.3.70.0080.00814.82
7.3.60.0080.00714.79
7.3.50.0060.00614.73
7.3.40.0050.01214.52
7.3.30.0060.00814.67
7.3.20.0030.01016.65
7.3.10.0060.00816.54
7.3.00.0050.00716.50
7.2.330.0080.01916.66
7.2.320.0110.00716.37
7.2.310.0130.00316.47
7.2.300.0070.01116.25
7.2.290.0220.00016.57
7.2.250.0060.01014.85
7.2.240.0070.01414.90
7.2.230.0070.00614.66
7.2.220.0030.00914.83
7.2.210.0070.00915.00
7.2.200.0050.00614.72
7.2.190.0070.00715.00
7.2.180.0110.00514.81
7.2.170.0050.00914.86
7.2.130.0030.00717.05
7.2.120.0060.00616.63
7.2.110.0030.00816.86
7.2.100.0030.00616.97
7.2.90.0090.00416.82
7.2.80.0110.00416.82
7.2.70.0060.00616.44
7.2.60.0080.00616.83
7.2.50.0090.00316.74
7.2.40.0090.00316.97
7.2.30.0100.00316.58
7.2.20.0100.00216.77
7.2.10.0070.00716.51
7.2.00.0070.00717.82
7.1.330.0080.00715.90
7.1.320.0020.00915.77
7.1.310.0070.00615.78
7.1.300.0040.00715.67
7.1.290.0030.01015.60
7.1.280.0050.01015.91
7.1.270.0070.00415.70
7.1.260.0050.00815.65
7.1.250.0070.00715.68
7.1.200.0090.00315.63
7.1.100.0060.01018.10
7.1.70.0050.00316.84
7.1.60.0160.00919.52
7.1.50.0070.01416.96
7.1.00.0030.07722.52
7.0.200.0040.00416.76
7.0.60.0100.06319.85
7.0.50.0070.04317.77
7.0.40.0130.08320.18
7.0.30.0300.07720.02
7.0.20.0270.07020.04
7.0.10.0070.06320.13
7.0.00.0070.08320.00
5.6.280.0000.03321.07
5.6.210.0100.06320.54
5.6.200.0070.04718.14
5.6.190.0030.07720.37
5.6.180.0230.05320.61
5.6.170.0330.05720.54
5.6.160.0070.04020.52
5.6.150.0070.08018.27
5.6.140.0030.06718.21
5.6.130.0000.05018.23
5.6.120.0070.08720.96
5.6.110.0070.08020.89
5.6.100.0030.08721.06
5.6.90.0100.07720.97
5.6.80.0170.05720.40
5.5.350.0430.06720.29
5.5.340.0200.06017.98
5.5.330.0000.04720.40
5.5.320.0670.06020.51
5.5.310.0130.04720.30
5.5.300.0130.06318.05
5.5.290.0100.07717.95
5.5.280.0100.07020.73
5.5.270.0070.05720.76
5.5.260.0000.06320.95
5.5.250.0170.07320.55
5.5.240.4270.04020.24

preferences:
54.19 ms | 400 KiB | 5 Q