<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <title>QM_ASSIGN</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="internals2.opcodes.print.html">PRINT</a></div> <div class="next" style="text-align: right; float: right;"><a href="internals2.opcodes.raise-abstract-error.html">RAISE_ABSTRACT_ERROR</a></div> <div class="up"><a href="internals2.opcodes.list.html">Opcode Descriptions and Examples</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div><hr /><div id="internals2.opcodes.qm-assign" class="section"> <h2 class="title">QM_ASSIGN</h2> <div class="section" id="internals2.opcodes.qm-assign.code"> <h2 class="title">PHP code</h2> <div class="example-contents"> <div class="phpcode"><code><span style="color: #000000"> <span style="color: #0000BB"><?php<br /></span><span style="color: #FF8000">/*<br /> * Question Mark Assign, used twice inside a question mark assign to temporarily assign result as value1 (this is followed up with an ASSIGN bytecode)<br /> * opcode number: 22<br /> */<br /></span><span style="color: #007700">function </span><span style="color: #0000BB">A</span><span style="color: #007700">(){<br /> echo </span><span style="color: #0000BB">1</span><span style="color: #007700">?</span><span style="color: #0000BB">2</span><span style="color: #007700">:</span><span style="color: #0000BB">3</span><span style="color: #007700">;<br />}<br /><br />function </span><span style="color: #0000BB">B</span><span style="color: #007700">(){<br /> </span><span style="color: #0000BB">$b </span><span style="color: #007700">= </span><span style="color: #0000BB">0</span><span style="color: #007700">;<br /> </span><span style="color: #0000BB">$a </span><span style="color: #007700">= </span><span style="color: #0000BB">$b </span><span style="color: #007700">> </span><span style="color: #0000BB">1 </span><span style="color: #007700">? </span><span style="color: #0000BB">10</span><span style="color: #007700">: </span><span style="color: #0000BB">11</span><span style="color: #007700">;<br />}<br /></span><span style="color: #0000BB">?></span> </span> </code></div> </div> </div> <div class="section" id="internals2.opcodes.qm-assign.listing"> <h2 class="title">PHP opcodes</h2> <p class="simpara">Function name: (null)</p> <p class="simpara">Compiled variables: none </p> <table class="doctable informaltable"> <thead> <tr> <th>line</th><th>#</th><th>op</th> <th>fetch</th><th>ext</th><th>return</th> <th>operands</th> </tr> </thead> <tbody class="tbody"> <tr> <td>6</td><td>0</td> <td>NOP</td><td class="empty"> </td> <td class="empty"> </td><td class="empty"> </td> <td class="empty"> </td> </tr> <tr> <td>10</td><td>1</td> <td>NOP</td><td class="empty"> </td> <td class="empty"> </td><td class="empty"> </td> <td class="empty"> </td> </tr> <tr> <td>14</td><td>2</td> <td>RETURN</td><td class="empty"> </td> <td class="empty"> </td><td class="empty"> </td> <td>1</td> </tr> </tbody> </table> <p class="simpara">Function name: A</p> <p class="simpara">Compiled variables: none </p> <table class="doctable informaltable"> <thead> <tr> <th>line</th><th>#</th><th>op</th> <th>fetch</th><th>ext</th><th>return</th> <th>operands</th> </tr> </thead> <tbody class="tbody"> <tr> <td>7</td><td>0</td> <td>JMPZ</td><td class="empty"> </td> <td class="empty"> </td><td class="empty"> </td> <td>1,->3</td> </tr> <tr> <td class="empty"> </td><td>1</td> <td>QM_ASSIGN</td><td class="empty"> </td> <td class="empty"> </td><td>~0</td> <td>2</td> </tr> <tr> <td class="empty"> </td><td>2</td> <td>JMP</td><td class="empty"> </td> <td class="empty"> </td><td class="empty"> </td> <td>->4</td> </tr> <tr> <td class="empty"> </td><td>3</td> <td>QM_ASSIGN</td><td class="empty"> </td> <td class="empty"> </td><td>~0</td> <td>3</td> </tr> <tr> <td class="empty"> </td><td>4</td> <td>ECHO</td><td class="empty"> </td> <td class="empty"> </td><td class="empty"> </td> <td>~0</td> </tr> <tr> <td>8</td><td>5</td> <td>RETURN</td><td class="empty"> </td> <td class="empty"> </td><td class="empty"> </td> <td>null</td> </tr> </tbody> </table> <p class="simpara">Function name: B</p> <p class="simpara">Compiled variables: !0=$b, !1=$a </p> <table class="doctable informaltable"> <thead> <tr> <th>line</th><th>#</th><th>op</th> <th>fetch</th><th>ext</th><th>return</th> <th>operands</th> </tr> </thead> <tbody class="tbody"> <tr> <td>11</td><td>0</td> <td>ASSIGN</td><td class="empty"> </td> <td class="empty"> </td><td class="empty"> </td> <td>!0,0</td> </tr> <tr> <td>12</td><td>1</td> <td>IS_SMALLER</td><td class="empty"> </td> <td class="empty"> </td><td>~1</td> <td>1,!0</td> </tr> <tr> <td class="empty"> </td><td>2</td> <td>JMPZ</td><td class="empty"> </td> <td class="empty"> </td><td class="empty"> </td> <td>~1,->5</td> </tr> <tr> <td class="empty"> </td><td>3</td> <td>QM_ASSIGN</td><td class="empty"> </td> <td class="empty"> </td><td>~2</td> <td>10</td> </tr> <tr> <td class="empty"> </td><td>4</td> <td>JMP</td><td class="empty"> </td> <td class="empty"> </td><td class="empty"> </td> <td>->6</td> </tr> <tr> <td class="empty"> </td><td>5</td> <td>QM_ASSIGN</td><td class="empty"> </td> <td class="empty"> </td><td>~2</td> <td>11</td> </tr> <tr> <td class="empty"> </td><td>6</td> <td>ASSIGN</td><td class="empty"> </td> <td class="empty"> </td><td class="empty"> </td> <td>!1,~2</td> </tr> <tr> <td>13</td><td>7</td> <td>RETURN</td><td class="empty"> </td> <td class="empty"> </td><td class="empty"> </td> <td>null</td> </tr> </tbody> </table> </div> </div><hr /><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="internals2.opcodes.print.html">PRINT</a></div> <div class="next" style="text-align: right; float: right;"><a href="internals2.opcodes.raise-abstract-error.html">RAISE_ABSTRACT_ERROR</a></div> <div class="up"><a href="internals2.opcodes.list.html">Opcode Descriptions and Examples</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div></body></html>