php-doc-en/reference/scream/examples.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->

<chapter xml:id="scream.examples" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
 &reftitle.examples;

 <section xml:id="scream.examples-simple">
  <title>Example that shows the effect of scream</title>
  <para>
   This example demonstrates how scream affects the behaviour of PHP's  error handler.
  </para>
  <para>
   <example>
    <title>Enabling and disabling scream at runtime</title>
    <programlisting role="php">
<![CDATA[
<?php
// Make sure errors will be shown
ini_set('display_errors', true);
error_reporting(E_ALL);

// Disable scream - this is the default and produce an error
ini_set('scream.enabled', false);
echo "Opening http://example.com/not-existing-file\n";
@fopen('http://example.com/not-existing-file', 'r');

// Now enable scream and try again
ini_set('scream.enabled', true);
echo "Opening http://example.com/not-existing-file\n";
@fopen('http://example.com/another-not-existing-file', 'r');
?>
]]>
    </programlisting>
    &example.outputs.similar;
    <screen>
<![CDATA[
Opening http://example.com/not-existing-file
Opening http://example.com/not-existing-file

Warning: fopen(http://example.com/another-not-existing-file): failed to open stream: HTTP request failed! HTTP/1.1 404 Not Found in example.php on line 14
]]>
    </screen>
   </example>
  </para>
  <note>
   <simpara>
    Usually one would set this in the <link linkend="configuration.file">php.ini configuration file</link>
    instead of changing the code.
    </simpara>
  </note>
 </section>
</chapter>

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