3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(empty('')); var_dump(empty('0')); var_dump(empty([])); var_dump(empty(null)); var_dump(empty(false)); var_dump(empty(0)); var_dump(empty(+0)); var_dump(empty(-0)); var_dump(empty(0.0)); var_dump(empty(0.00)); var_dump(empty(-0.0)); $xml = <<<XML <?xml version='1.0' standalone='yes'?> <a></a> XML; var_dump(empty(new SimpleXMLElement($xml))); echo "\n-------\n"; // false $stdClass = (object)[]; var_dump(empty($stdClass), $stdClass); var_dump(empty(NAN)); var_dump(empty([[]])); var_dump(empty('-0')); var_dump(empty('0.0')); var_dump(empty(' ')); // 半角スペース

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)
8.3.60.0090.00916.88
8.3.50.0170.00320.13
8.3.40.0070.00720.59
8.3.30.0120.00318.97
8.3.20.0050.00324.18
8.3.10.0080.00024.66
8.3.00.0080.00026.16
8.2.180.0120.00325.92
8.2.170.0110.00422.96
8.2.160.0070.01022.96
8.2.150.0040.00425.66
8.2.140.0050.00324.66
8.2.130.0000.00726.16
8.2.120.0080.00020.92
8.2.110.0060.00319.43
8.2.100.0070.00418.03
8.2.90.0040.00419.33
8.2.80.0050.00317.97
8.2.70.0040.00418.18
8.2.60.0080.00018.16
8.2.50.0000.00818.07
8.2.40.0000.00818.29
8.2.30.0050.00318.23
8.2.20.0050.00219.44
8.2.10.0050.00218.22
8.2.00.0000.00719.42
8.1.280.0120.00325.92
8.1.270.0090.00623.70
8.1.260.0050.00326.35
8.1.250.0000.00828.09
8.1.240.0050.00519.71
8.1.230.0040.00819.80
8.1.220.0030.00517.79
8.1.210.0050.00318.77
8.1.200.0000.00817.48
8.1.190.0060.00317.36
8.1.180.0090.00018.10
8.1.170.0000.00818.63
8.1.160.0000.00719.11
8.1.150.0000.00718.83
8.1.140.0040.00417.64
8.1.130.0000.00720.49
8.1.120.0000.00817.76
8.1.110.0100.00017.58
8.1.100.0080.00817.63
8.1.90.0170.00017.69
8.1.80.0140.00317.69
8.1.70.0120.00417.67
8.1.60.0110.00717.62
8.1.50.0130.00517.64
8.1.40.0140.00317.64
8.1.30.0180.00017.74
8.1.20.0110.00717.73
8.1.10.0140.00517.73
8.1.00.0130.00517.62
8.0.300.0000.00718.77
8.0.290.0030.00617.13
8.0.280.0040.00418.67
8.0.270.0030.00317.41
8.0.260.0070.00018.56
8.0.250.0030.00517.31
8.0.240.0110.00517.07
8.0.230.0140.00017.13
8.0.220.0130.00317.17
8.0.210.0120.00317.05
8.0.200.0130.00317.05
8.0.190.0040.00417.13
8.0.180.0120.00417.12
8.0.170.0100.00617.18
8.0.160.0130.00317.13
8.0.150.0120.00317.07
8.0.140.0070.00717.01
8.0.130.0080.00817.08
8.0.120.0050.01017.14
8.0.110.0040.00817.10
8.0.100.0060.01117.10
8.0.90.0080.00817.12
8.0.80.0110.00417.12
8.0.70.0040.01217.05
8.0.60.0120.00216.97
8.0.50.0150.00017.17
8.0.30.0160.00017.05
8.0.20.0070.00917.18
8.0.10.0130.00317.33
7.4.330.0020.00215.55
7.4.320.0120.00516.76
7.4.300.0120.00516.63
7.4.290.0130.00316.76
7.4.280.0110.00616.61
7.4.270.0110.00616.68
7.4.260.0100.00316.80
7.4.250.0080.00816.75
7.4.240.0080.00816.76
7.4.230.0000.01016.79
7.4.220.0100.00516.57
7.4.210.0110.00416.65
7.4.200.0110.00316.63
7.4.190.0090.00016.60
7.4.180.0100.00016.45
7.4.160.0040.00416.79
7.4.150.0040.00416.62
7.4.140.0080.00216.29
7.4.130.0090.00016.41
7.4.120.0070.00316.69
7.4.110.0040.00416.52
7.4.100.0070.00516.63
7.4.90.0100.00316.57
7.4.80.0090.00016.49
7.4.70.0000.00716.43
7.4.60.0000.00616.62
7.4.50.0060.00016.42
7.4.40.0130.00016.45
7.4.30.0000.01016.47
7.4.20.0000.01016.56
7.4.10.0070.00416.47
7.4.00.0000.00816.42

preferences:
52.84 ms | 400 KiB | 5 Q