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    <p>I just user print_r, along with a couple of wrapper functions to store the various DebugPrint I put in my code and one on the footer to dump the stack in the page (or in a file).</p> <p>I now try to use XDebug too... :-D</p> <p>OK, for the record, I give my little functions...</p> <pre><code>// Primitive debug message storage // $level = "Info", "Warn", "Error", "Title" function DebugPrint($toDump, $level = "Info") { global $debugMode, $debugDump, $debugCount; if ($debugMode != 'N') { $debugDump[$debugCount++] = "&lt;div class='Dbg$level'&gt;" . $toDump . "&lt;/div&gt;\n"; } } // Initialize debug information collection $debugMode = 'N'; // N=no, desactivated, P=dump to Web page, F=dump to file $debugSavePath = 'C:\www\App\log_debug.txt'; // If mode F $debugDump = array(); $debugCount = 0; // Primitive debug message dump function DebugDump() { global $debugMode, $debugSavePath, $debugDump, $debugCount; if ($debugMode == 'F') { $fp = fopen($debugSavePath, "a"); #open for writing } if ($debugCount &gt; 0) { switch ($debugMode) { case 'P': echo '&lt;div style="color: red; background: #8FC; font-size: 24px;"&gt;Debug:&lt;br /&gt; '; for ($i = 0; $i &lt; $debugCount; $i++) { echo $debugDump[$i]; } echo '&lt;/div&gt; '; break; case 'F': for ($i = 0; $i &lt; $debugCount; $i++) { fputs($fp, $debugDump[$i]); } break; //~ default: //~ echo "debugMode = $debugMode&lt;br /&gt;\n"; } } if ($fp != null) { fputs($fp, "-----\n"); fclose($fp); } } // Pre array dump function DebugArrayPrint($array) { global $debugMode; if ($debugMode != 'N') { return "&lt;pre class='ArrayPrint'&gt;" . print_r($array, true) . "&lt;/pre&gt;"; } else return ""; // Gain some microseconds... } </code></pre> <p>The interest is to delay the output to the end of the page, avoiding to clutter the real page.</p>
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    1. POWhich php variable debugging function do you use? var_dump, print_r, var_export, other?
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