<!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>THROW</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="internals2.opcodes.switch-free.html">SWITCH_FREE</a></div> <div class="next" style="text-align: right; float: right;"><a href="internals2.opcodes.ticks.html">TICKS</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.throw" class="section"> <h2 class="title">THROW</h2> <div class="section" id="internals2.opcodes.throw.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 /> * <br /> * opcode number: 108<br /> */<br /></span><span style="color: #007700">try {<br /> </span><span style="color: #0000BB">$error </span><span style="color: #007700">= </span><span style="color: #DD0000">'Always throw this error'</span><span style="color: #007700">;<br /> throw new </span><span style="color: #0000BB">Exception</span><span style="color: #007700">(</span><span style="color: #0000BB">$error</span><span style="color: #007700">);<br /><br /> </span><span style="color: #FF8000">// Code following an exception is not executed.<br /> </span><span style="color: #007700">echo </span><span style="color: #DD0000">'Never executed'</span><span style="color: #007700">;<br /><br />} catch (</span><span style="color: #0000BB">Exception $e</span><span style="color: #007700">) {<br /> echo </span><span style="color: #DD0000">'Caught exception: '</span><span style="color: #007700">, </span><span style="color: #0000BB">$e</span><span style="color: #007700">-></span><span style="color: #0000BB">getMessage</span><span style="color: #007700">(), </span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br />}<br /><br /></span><span style="color: #FF8000">// Continue execution<br /></span><span style="color: #007700">echo </span><span style="color: #DD0000">'Hello World'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">?></span> </span> </code></div> </div> </div> <div class="section" id="internals2.opcodes.throw.listing"> <h2 class="title">PHP opcodes</h2> <p class="simpara">Function name: (null)</p> <p class="simpara">Compiled variables: !0=$error, !1=$e </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>ASSIGN</td><td class="empty"> </td> <td class="empty"> </td><td class="empty"> </td> <td>!0,'Always+throw+this+error'</td> </tr> <tr> <td>8</td><td>1</td> <td>ZEND_FETCH_CLASS</td><td class="empty"> </td> <td class="empty"> </td><td>:1</td> <td>'Exception'</td> </tr> <tr> <td class="empty"> </td><td>2</td> <td>NEW</td><td class="empty"> </td> <td class="empty"> </td><td>$2</td> <td>:1</td> </tr> <tr> <td class="empty"> </td><td>3</td> <td>SEND_VAR</td><td class="empty"> </td> <td class="empty"> </td><td class="empty"> </td> <td>!0</td> </tr> <tr> <td class="empty"> </td><td>4</td> <td>DO_FCALL_BY_NAME</td><td class="empty"> </td> <td>1</td><td class="empty"> </td> <td class="empty"> </td> </tr> <tr> <td class="empty"> </td><td>5</td> <td>ZEND_THROW</td><td class="empty"> </td> <td>0</td><td class="empty"> </td> <td>$2</td> </tr> <tr> <td>11</td><td>6</td> <td>ECHO</td><td class="empty"> </td> <td class="empty"> </td><td class="empty"> </td> <td>'Never+executed'</td> </tr> <tr> <td>13</td><td>7</td> <td>JMP</td><td class="empty"> </td> <td class="empty"> </td><td class="empty"> </td> <td>->15</td> </tr> <tr> <td class="empty"> </td><td>8</td> <td>ZEND_FETCH_CLASS</td><td class="empty"> </td> <td class="empty"> </td><td>:4</td> <td>'Exception'</td> </tr> <tr> <td class="empty"> </td><td>9</td> <td>ZEND_CATCH</td><td class="empty"> </td> <td>15</td><td class="empty"> </td> <td>$4,!1</td> </tr> <tr> <td>14</td><td>10</td> <td>ECHO</td><td class="empty"> </td> <td class="empty"> </td><td class="empty"> </td> <td>'Caught+exception%3A+'</td> </tr> <tr> <td class="empty"> </td><td>11</td> <td>ZEND_INIT_METHOD_CALL</td><td class="empty"> </td> <td class="empty"> </td><td class="empty"> </td> <td>!1,'getMessage'</td> </tr> <tr> <td class="empty"> </td><td>12</td> <td>DO_FCALL_BY_NAME</td><td class="empty"> </td> <td>0</td><td class="empty"> </td> <td class="empty"> </td> </tr> <tr> <td class="empty"> </td><td>13</td> <td>ECHO</td><td class="empty"> </td> <td class="empty"> </td><td class="empty"> </td> <td>$6</td> </tr> <tr> <td class="empty"> </td><td>14</td> <td>ECHO</td><td class="empty"> </td> <td class="empty"> </td><td class="empty"> </td> <td>'%0A'</td> </tr> <tr> <td>18</td><td>15</td> <td>ECHO</td><td class="empty"> </td> <td class="empty"> </td><td class="empty"> </td> <td>'Hello+World'</td> </tr> <tr> <td>19</td><td>16</td> <td>RETURN</td><td class="empty"> </td> <td class="empty"> </td><td class="empty"> </td> <td>1</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.switch-free.html">SWITCH_FREE</a></div> <div class="next" style="text-align: right; float: right;"><a href="internals2.opcodes.ticks.html">TICKS</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>