yaml-parse.xml

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<refentry xml:id="function.yaml-parse" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
 <refnamediv>
  <refname>yaml_parse</refname>
  <refpurpose>Analyse un flux YAML</refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>mixed</type><methodname>yaml_parse</methodname>
   <methodparam><type>string</type><parameter>input</parameter></methodparam>
   <methodparam choice="opt"><type>int</type><parameter>pos</parameter><initializer>0</initializer></methodparam>
   <methodparam choice="opt"><type>int</type><parameter role="reference">ndocs</parameter></methodparam>
   <methodparam choice="opt"><type>array</type><parameter>callbacks</parameter><initializer>&null;</initializer></methodparam>
  </methodsynopsis>
  <para>
   Convertit tout ou partie d'un document YAML provenant d'une chaîne vers une
   variable PHP.
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>input</parameter></term>
     <listitem>
      <para>
       La chaîne à analyser comme document YAML.
      </para>
     </listitem>
    </varlistentry>
     <varlistentry>
     <term><parameter>pos</parameter></term>
     <listitem>
      <para>
       Le document à extraire du flux (<literal>-1</literal> pour tous les
       documents, <literal>0</literal> pour le premier, ...).
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>ndocs</parameter></term>
     <listitem>
      <para>
       Si le paramètre <parameter>ndocs</parameter> est fourni, alors il est
       rempli avec le nombre de documents trouvés dans le flux.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>callbacks</parameter></term>
     <listitem>
      <para>
       Analyseurs de contenu pour les nœuds YAML. Tableau associatif tag YAML
        =&gt; <type>callable</type>. Voir
       <link linkend="yaml.callbacks.parse">l'analyse des fonctions de rappel</link>
       pour plus d'informations.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Retourne la valeur encodée de <parameter>input</parameter> dans le type PHP
   approprié&return.falseforfailure;.
   Si <parameter>pos</parameter> vaut <literal>-1</literal>, un tableau sera retourné
   avec pour chaque valeur un document trouvé dans le flux.
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title>Exemple <function>yaml_parse</function></title>
    <programlisting role="php">
<![CDATA[
<?php
$yaml = <<<EOD
---
invoice: 34843
date: "2001-01-23"
bill-to: &id001
  given: Chris
  family: Dumars
  address:
    lines: |-
      458 Walkman Dr.
              Suite #292
    city: Royal Oak
    state: MI
    postal: 48046
ship-to: *id001
product:
- sku: BL394D
  quantity: 4
  description: Basketball
  price: 450
- sku: BL4438H
  quantity: 1
  description: Super Hoop
  price: 2392
tax: 251.420000
total: 4443.520000
comments: Late afternoon is best. Backup contact is Nancy Billsmer @ 338-4338.
...
EOD;

$parsed = yaml_parse($yaml);
var_dump($parsed);
?>
]]>
    </programlisting>
    &example.outputs.similar;
    <screen>
<![CDATA[
array(8) {
  ["invoice"]=>
  int(34843)
  ["date"]=>
  string(10) "2001-01-23"
  ["bill-to"]=>
  &array(3) {
    ["given"]=>
    string(5) "Chris"
    ["family"]=>
    string(6) "Dumars"
    ["address"]=>
    array(4) {
      ["lines"]=>
      string(34) "458 Walkman Dr.
        Suite #292"
      ["city"]=>
      string(9) "Royal Oak"
      ["state"]=>
      string(2) "MI"
      ["postal"]=>
      int(48046)
    }
  }
  ["ship-to"]=>
  &array(3) {
    ["given"]=>
    string(5) "Chris"
    ["family"]=>
    string(6) "Dumars"
    ["address"]=>
    array(4) {
      ["lines"]=>
      string(34) "458 Walkman Dr.
        Suite #292"
      ["city"]=>
      string(9) "Royal Oak"
      ["state"]=>
      string(2) "MI"
      ["postal"]=>
      int(48046)
    }
  }
  ["product"]=>
  array(2) {
    [0]=>
    array(4) {
      ["sku"]=>
      string(6) "BL394D"
      ["quantity"]=>
      int(4)
      ["description"]=>
      string(10) "Basketball"
      ["price"]=>
      int(450)
    }
    [1]=>
    array(4) {
      ["sku"]=>
      string(7) "BL4438H"
      ["quantity"]=>
      int(1)
      ["description"]=>
      string(10) "Super Hoop"
      ["price"]=>
      int(2392)
    }
  }
  ["tax"]=>
  float(251.42)
  ["total"]=>
  float(4443.52)
  ["comments"]=>
  string(68) "Late afternoon is best. Backup contact is Nancy Billsmer @ 338-4338."
}
]]>
    </screen>
   </example>
  </para>
 </refsect1>

 <refsect1 role="notes">
  &reftitle.notes;
  <warning>
   <para>
    Le fait de traiter une entrée utilisateur non sécurisée avec
    <function>yaml_parse</function> est dangereux si l'utilisation de
    <function>unserialize</function> est activé pour les nœuds utilisant
    la balise <literal>!php/object</literal>. Ce comportement peut être
    désactivé en utilisant la configuration ini
    <literal>yaml.decode_php</literal>.
   </para>
  </warning>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>yaml_parse_file</function></member>
    <member><function>yaml_parse_url</function></member>
    <member><function>yaml_emit</function></member>
   </simplelist>
  </para>
 </refsect1>

</refentry>

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