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<title>Set an error handler for a XSLT processor</title>
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<div class="refnamediv">
<h1 class="refname">xslt_set_error_handler</h1>
<p class="verinfo">(PHP 4 >= 4.0.4)</p><p class="refpurpose"><span class="refname">xslt_set_error_handler</span> — <span class="dc-title">Set an error handler for a <acronym title="eXtensible Stylesheet Language Transformations">XSLT</acronym> processor</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.xslt-set-error-handler-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type"><span class="type void">void</span></span> <span class="methodname"><strong>xslt_set_error_handler</strong></span>
( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$xh</code></span>
, <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter">$handler</code></span>
)</div>
<p class="para rdfs-comment">
Set an error handler function for the <acronym title="eXtensible Stylesheet Language Transformations">XSLT</acronym> processor given by
<em><code class="parameter">xh</code></em>, this function will be called whenever an
error occurs in the <acronym title="eXtensible Stylesheet Language Transformations">XSLT</acronym> transformation (this function is also called
for notices).
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.xslt-set-error-handler-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<span class="term"><em><code class="parameter">
xh</code></em></span><dd>
<p class="para">The <acronym title="eXtensible Stylesheet Language Transformations">XSLT</acronym> processor
link identifier, created with <span class="function"><a href="function.xslt-create.html" class="function">xslt_create()</a></span>.</p></dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">handler</code></em></span>
<dd>
<p class="para">
The user function needs to accept four parameters: the <acronym title="eXtensible Stylesheet Language Transformations">XSLT</acronym> processor,
the error level, the error code and an array of messages. The function
can be shown as:
<div class="methodsynopsis dc-description">
<span class="methodname"><span class="replaceable">error_handler</span></span>
( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$xh</code></span>
, <span class="methodparam"><span class="type">int</span> <code class="parameter">$error_level</code></span>
, <span class="methodparam"><span class="type">int</span> <code class="parameter">$error_code</code></span>
, <span class="methodparam"><span class="type">array</span> <code class="parameter">$messages</code></span>
)</div>
</p>
</dd>
</dt>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.xslt-set-error-handler-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
No value is returned.
</p>
</div>
<div class="refsect1 examples" id="refsect1-function.xslt-set-error-handler-examples">
<h3 class="title">Examples</h3>
<div class="example" id="example-5554">
<p><strong>Example #1 <span class="function"><strong>xslt_set_error_handler()</strong></span> Example</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br /><br /></span><span style="color: #FF8000">// Our XSLT error handler<br /></span><span style="color: #007700">function </span><span style="color: #0000BB">xslt_error_handler</span><span style="color: #007700">(</span><span style="color: #0000BB">$handler</span><span style="color: #007700">, </span><span style="color: #0000BB">$errno</span><span style="color: #007700">, </span><span style="color: #0000BB">$level</span><span style="color: #007700">, </span><span style="color: #0000BB">$info</span><span style="color: #007700">)<br />{<br /> </span><span style="color: #FF8000">// for now, let's just see the arguments<br /> </span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">func_get_args</span><span style="color: #007700">());<br />}<br /><br /></span><span style="color: #FF8000">// XML content :<br /></span><span style="color: #0000BB">$xml</span><span style="color: #007700">=</span><span style="color: #DD0000">'<?xml version="1.0"?><br /><para><br /> oops, I misspelled the closing tag<br /></pata>'</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">// XSL content :<br /></span><span style="color: #0000BB">$xsl</span><span style="color: #007700">=</span><span style="color: #DD0000">'<?xml version="1.0"?><br /><xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"><br /><xsl:template match="/"><br /> <strong><xsl:value-of select="para"/></strong><br /></xsl:template><br /></xsl:stylesheet>'</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">$xh </span><span style="color: #007700">= </span><span style="color: #0000BB">xslt_create</span><span style="color: #007700">();<br /><br /></span><span style="color: #0000BB">xslt_set_error_handler</span><span style="color: #007700">(</span><span style="color: #0000BB">$xh</span><span style="color: #007700">, </span><span style="color: #DD0000">"xslt_error_handler"</span><span style="color: #007700">);<br /><br />echo </span><span style="color: #0000BB">xslt_process</span><span style="color: #007700">(</span><span style="color: #0000BB">$xh</span><span style="color: #007700">, </span><span style="color: #DD0000">'arg:/_xml'</span><span style="color: #007700">, </span><span style="color: #DD0000">'arg:/_xsl'</span><span style="color: #007700">,<br /> </span><span style="color: #0000BB">NULL</span><span style="color: #007700">, array(</span><span style="color: #DD0000">"/_xml" </span><span style="color: #007700">=> </span><span style="color: #0000BB">$xml</span><span style="color: #007700">, </span><span style="color: #DD0000">"/_xsl" </span><span style="color: #007700">=> </span><span style="color: #0000BB">$xsl</span><span style="color: #007700">));<br /><br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
<div class="example-contents"><p>The above example will output
something similar to:</p></div>
<div class="example-contents screen">
<div class="cdata"><pre>
array(4) {
[0]=>
resource(1) of type (XSLT Processor)
[1]=>
int(3)
[2]=>
int(0)
[3]=>
array(6) {
["msgtype"]=>
string(5) "error"
["code"]=>
string(1) "2"
["module"]=>
string(9) "Sablotron"
["URI"]=>
string(9) "arg:/_xml"
["line"]=>
string(1) "4"
["msg"]=>
string(34) "XML parser error 7: mismatched tag"
}
}
</pre></div>
</div>
</div>
</div>
<div class="refsect1 seealso" id="refsect1-function.xslt-set-error-handler-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<li class="member"> <span class="function"><a href="function.xslt-set-object.html" class="function" rel="rdfs-seeAlso">xslt_set_object()</a> - Sets the object in which to resolve callback functions</span> if you want to use an
object method as handler</li>
</ul>
</p>
</div>
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