Online PHP editor | perf for 5K01R

<?php error_reporting(E_ALL); ?><!doctype html> <html> <head> <meta charset="utf-8"> <title>PHP comparisions</title> <link href='//fonts.googleapis.com/css?family=Inconsolata&subset=latin,latin-ext' rel='stylesheet' type='text/css'> <link href='//fonts.googleapis.com/css?family=Roboto&subset=latin,latin-ext' rel='stylesheet' type='text/css'> <style> * { font-size: 0.98em; } table { border-collapse: collapse; } th, td { margin: 0; padding: 7px; border: 1px solid #ddd; } th { font-weight: normal; background-color: #eee; } thead th:first-child { border-left: 0; border-top: 0; background-color: transparent; } th, .code { font-family: Inconsolata, monospace; white-space: pre; } tbody th { text-align: left; } td { text-align: center; } span.true { color: green; } span.false { color: red; opacity: 0.5; } .strict { display: none; } .hi { background-color: #ffa; } div { -moz-user-select: none; -khtml-user-select: none; -webkit-user-select: none; -o-user-select: none; user-select: none; } td, div { font-family: Roboto, sans-serif; } </style> </head> <body> <?php $values = array( '""', 'null', 'false', 'true', '0', '"0"', '-1', '"-1"', 'array()', 'array(null)', 'array(false)', 'array(0)', 'array("0")' ); ?><table> <thead> <tr> <th></th> <?php for($i = 0; $i < count($values); $i++) { ?><th><?php echo formatValue(getValue($values, $i)); ?></th><?php } ?> </tr> </thead> <tbody> <tr> <th>if(...)</th> <?php for($i = 0; $i < count($values); $i++) { $Vi = getValue($values, $i); ?><td><?php echo formatCompare($Vi); ?></td><?php } ?> </tr> <tr> <th>empty</th> <?php for($i = 0; $i < count($values); $i++) { $Vi = getValue($values, $i); ?><td><?php echo formatCompare(empty($Vi)); ?></td><?php } ?> </tr> <tr> <th>is_null</th> <?php for($i = 0; $i < count($values); $i++) { $Vi = getValue($values, $i); ?><td><?php echo formatCompare(is_null($Vi)); ?></td><?php } ?> </tr> <tr> <th>is_numeric</th> <?php for($i = 0; $i < count($values); $i++) { $Vi = getValue($values, $i); ?><td><?php echo formatCompare(is_numeric($Vi)); ?></td><?php } ?> </tr> <tr> <th>intval</th> <?php for($i = 0; $i < count($values); $i++) { $Vi = getValue($values, $i); ?><td class="code"><?php echo formatValue(intval($Vi)); ?></td><?php } ?> </tr> <?php for($j = 0; $j < count($values); $j++) { $Vj = getValue($values, $j); ?><tr> <th><span class="loose">== </span><span class="strict">===</span> <?php echo formatValue($Vj); ?></th> <?php for($i = 0; $i < count($values); $i++) { $Vi = getValue($values, $i); ?><td> <span class="loose"><?php echo formatCompare($Vi == $Vj); ?></span> <span class="strict"><?php echo formatCompare($Vi === $Vj); ?></span> </td><?php } ?></tr><?php } ?> </tbody> </table> <div style="user-select:none"> <label><input type="checkbox" id="strict"> strict comparisions</label> </div> <script src="//code.jquery.com/jquery-1.11.0.min.js"></script> <script>(function() { $('#strict') .on('change', function() { $('.strict')[this.checked ? 'show' : 'hide'](); $('.loose')[this.checked ? 'hide' : 'show'](); }) .trigger('change') ; function hiCell(cell, hi) { var row = cell.parentNode.rowIndex, col = cell.cellIndex; $('thead tr th').eq(col)[hi ? 'addClass' : 'removeClass']('hi'); $('tbody tr').eq(row - 1).find('th').eq(0)[hi ? 'addClass' : 'removeClass']('hi'); $(cell)[hi ? 'addClass' : 'removeClass']('hi'); } $('td').on('mouseleave', function() { hiCell(this, false); }); $('td').on('mouseenter', function() { hiCell(this, true); }); })(); </script> </body> </html><?php function getValue($values, $index) { eval('$v = ' . $values[$index] . ';'); return $v; } function formatValue($o) { switch(gettype($o)) { case 'integer': $result = $o; break; case 'string': $result = '\'' . addslashes($o) . '\''; break; case 'NULL': $result = 'null'; break; case 'boolean': $result = $o ? 'true' : 'false'; break; case 'array': $values = array(); foreach($o as $v) { $values[] = formatValue($v); } $result = 'array(' . implode(', ', $values) . ')'; break; default: die(gettype($o)); } return $result; } function formatCompare($criteria) { if($criteria) { return '<span class="true">✓</span>'; } else { return '<span class="false">✗</span>'; } }

Version	System time (s)	User time (s)	Memory (MiB)
8.3.7	0.011	0.014	16.63
8.3.6	0.008	0.008	16.75
8.3.5	0.013	0.012	21.91
8.3.4	0.014	0.010	18.84
8.3.3	0.013	0.003	19.22
8.3.2	0.003	0.006	20.34
8.3.1	0.003	0.006	23.53
8.3.0	0.004	0.007	22.24
8.2.18	0.015	0.003	16.50
8.2.17	0.007	0.010	22.96
8.2.16	0.012	0.004	20.51
8.2.15	0.007	0.003	24.18
8.2.14	0.000	0.009	24.66
8.2.13	0.003	0.006	26.16
8.2.12	0.006	0.003	22.14
8.2.11	0.007	0.004	22.26
8.2.10	0.006	0.006	17.97
8.2.9	0.009	0.000	19.22
8.2.8	0.004	0.004	17.97
8.2.7	0.009	0.000	17.63
8.2.6	0.007	0.003	18.05
8.2.5	0.006	0.003	18.07
8.2.4	0.004	0.004	18.16
8.2.3	0.000	0.008	18.09
8.2.2	0.003	0.006	17.79
8.2.1	0.000	0.011	17.79
8.2.0	0.003	0.006	17.72
8.1.28	0.007	0.014	25.92
8.1.27	0.009	0.000	22.21
8.1.26	0.010	0.000	26.35
8.1.25	0.003	0.006	28.09
8.1.24	0.007	0.003	23.82
8.1.23	0.003	0.010	19.10
8.1.22	0.003	0.006	17.74
8.1.21	0.004	0.004	18.77
8.1.20	0.005	0.005	17.48
8.1.19	0.007	0.003	17.66
8.1.18	0.000	0.009	18.10
8.1.17	0.008	0.005	18.49
8.1.16	0.000	0.010	22.06
8.1.15	0.003	0.006	18.70
8.1.14	0.004	0.004	17.57
8.1.13	0.000	0.008	17.88
8.1.12	0.003	0.006	17.50
8.1.11	0.000	0.009	17.53
8.1.10	0.000	0.008	17.43
8.1.9	0.004	0.004	17.54
8.1.8	0.003	0.005	17.34
8.1.7	0.006	0.003	17.38
8.1.6	0.005	0.005	17.64
8.1.5	0.000	0.009	17.56
8.1.4	0.008	0.000	17.58
8.1.3	0.005	0.005	17.62
8.1.2	0.009	0.000	17.75
8.1.1	0.000	0.009	17.69
8.1.0	0.000	0.009	17.53
8.0.30	0.000	0.008	18.77
8.0.29	0.004	0.004	17.30
8.0.28	0.006	0.003	18.42
8.0.27	0.005	0.003	17.19
8.0.26	0.000	0.009	16.93
8.0.25	0.006	0.003	16.91
8.0.24	0.000	0.009	16.90
8.0.23	0.009	0.000	17.08
8.0.22	0.000	0.008	16.96
8.0.21	0.004	0.004	16.84
8.0.20	0.006	0.003	16.93
8.0.19	0.006	0.003	17.05
8.0.18	0.004	0.004	16.96
8.0.17	0.011	0.000	17.01
8.0.16	0.003	0.006	16.83
8.0.15	0.000	0.009	16.78
8.0.14	0.000	0.011	16.86
8.0.13	0.000	0.007	13.40
8.0.12	0.003	0.006	16.98
8.0.11	0.004	0.004	17.00
8.0.10	0.006	0.003	16.85
8.0.9	0.005	0.003	16.94
8.0.8	0.017	0.017	16.83
8.0.7	0.003	0.006	16.92
8.0.6	0.009	0.000	17.06
8.0.5	0.006	0.003	16.91
8.0.3	0.012	0.012	17.11
8.0.2	0.020	0.008	17.40
8.0.1	0.005	0.003	16.95
8.0.0	0.014	0.016	16.88
7.4.33	0.006	0.000	15.00
7.4.32	0.008	0.000	16.65
7.4.30	0.000	0.007	16.66
7.4.29	0.004	0.004	16.57
7.4.28	0.000	0.008	16.66
7.4.27	0.003	0.006	16.55
7.4.26	0.000	0.008	16.64
7.4.25	0.008	0.000	16.53
7.4.24	0.006	0.003	16.66
7.4.23	0.005	0.003	16.46
7.4.22	0.004	0.018	16.70
7.4.21	0.007	0.012	16.65
7.4.20	0.004	0.004	16.37
7.4.19	0.004	0.004	16.70
7.4.16	0.009	0.014	16.75
7.4.15	0.017	0.010	17.40
7.4.14	0.017	0.013	17.86
7.4.13	0.009	0.016	16.49
7.4.12	0.016	0.012	16.61
7.4.11	0.018	0.010	16.46
7.4.10	0.019	0.007	16.46
7.4.9	0.015	0.008	16.58
7.4.8	0.010	0.013	16.64
7.4.7	0.008	0.023	16.63
7.4.6	0.015	0.012	16.61
7.4.5	0.006	0.003	16.65
7.4.4	0.006	0.013	22.77
7.4.3	0.012	0.015	16.59
7.4.0	0.007	0.013	14.92
7.3.33	0.000	0.006	13.25
7.3.32	0.003	0.003	13.23
7.3.31	0.004	0.004	16.43
7.3.30	0.004	0.004	16.46
7.3.29	0.016	0.010	16.37
7.3.28	0.013	0.008	16.39
7.3.27	0.009	0.015	17.40
7.3.26	0.005	0.020	16.57
7.3.25	0.010	0.015	16.49
7.3.24	0.010	0.023	16.63
7.3.23	0.004	0.018	16.60
7.3.21	0.015	0.009	16.54
7.3.20	0.007	0.017	19.39
7.3.19	0.015	0.015	16.59
7.3.18	0.007	0.017	16.71
7.3.17	0.012	0.012	16.38
7.3.16	0.016	0.013	16.46
7.3.12	0.003	0.017	14.82
7.2.33	0.007	0.018	16.91
7.2.32	0.007	0.017	16.83
7.2.31	0.011	0.015	16.90
7.2.30	0.006	0.017	16.66
7.2.29	0.010	0.010	16.88
7.1.7	0.007	0.003	17.26
7.1.6	0.003	0.014	19.29
7.1.5	0.003	0.017	16.95
7.0.20	0.004	0.004	16.82