php-doc-en/reference/mongodb/bson/regex/construct.xml

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<refentry xml:id="mongodb-bson-regex.construct" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
 <refnamediv>
  <refname>MongoDB\BSON\Regex::__construct</refname>
  <refpurpose>Construct a new Regex</refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <modifier>final</modifier> <modifier>public</modifier> <methodname>MongoDB\BSON\Regex::__construct</methodname>
   <methodparam><type>string</type><parameter>pattern</parameter></methodparam>
   <methodparam choice="opt"><type>string</type><parameter>flags</parameter><initializer>""</initializer></methodparam>
  </methodsynopsis>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <variablelist>
   <varlistentry>
    <term><parameter>pattern</parameter> (<type>string</type>)</term>
    <listitem>
     <para>
      The regular expression pattern.
     </para>
     <note>
      <simpara>
       The pattern should not be wrapped with delimiter characters.
      </simpara>
     </note>
    </listitem>
   </varlistentry>
   <varlistentry>
    <term><parameter>flags</parameter> (<type>string</type>)</term>
    <listitem>
     <para>
      The <link xlink:href="&url.mongodb.docs.regex;#op._S_options">regular
      expression flags</link>. Characters in this argument will be sorted
      alphabetically.
     </para>
    </listitem>
   </varlistentry>
  </variablelist>
 </refsect1>

 <refsect1 role="errors">
  &reftitle.errors;
  <simplelist>
   &mongodb.throws.argumentparsing;
   <member>Throws <classname>MongoDB\Driver\Exception\InvalidArgumentException</classname> if <parameter>pattern</parameter> or <parameter>flags</parameter> contain null bytes.</member>
  </simplelist>
 </refsect1>

 <refsect1 role="changelog">
  &reftitle.changelog;
  <para>
   <informaltable>
    <tgroup cols="2">
     <thead>
      <row>
       <entry>&Version;</entry>
       <entry>&Description;</entry>
      </row>
     </thead>
     <tbody>
      <row>
       <entry>1.2.0</entry>
       <entry>
        <para>
         The <parameter>flags</parameter> argument is optional and defaults to
         an empty string.
        </para>
        <para>
         Characters in the <parameter>flags</parameter> argument will be sorted
         alphabetically when a Regex is constructed. Previously, the characters
         were stored in the order provided.
        </para>
        <para>
         <classname>MongoDB\Driver\Exception\InvalidArgumentException</classname>
         is thrown if <parameter>pattern</parameter> or
         <parameter>flags</parameter> contain null bytes. Previously, values
         would be truncated at the first null byte.
        </para>
       </entry>
      </row>
     </tbody>
    </tgroup>
   </informaltable>
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <example>
   <title><function>MongoDB\BSON\Regex::__construct</function> example</title>
   <programlisting role="php">
<![CDATA[
<?php

$regex = new MongoDB\BSON\Regex('^foo', 'i');
var_dump($regex);

?>
]]>
   </programlisting>
   &example.outputs;
   <screen>
<![CDATA[
object(MongoDB\BSON\Regex)#1 (2) {
  ["pattern"]=>
  string(4) "^foo"
  ["flags"]=>
  string(1) "i"
}
]]>
   </screen>
  </example>
 </refsect1>


 <refsect1 role="seealso">
  &reftitle.seealso;
  <simplelist>
   <member><link xlink:href="&url.mongodb.docs.bson;">BSON Types</link></member>
   <member><link xlink:href="&url.mongodb.docs.regex;#op._S_options">Supported regular expression flags</link></member>
  </simplelist>
 </refsect1>

</refentry>

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