Source of: /manual/fr/function.is-float.php
<?php
include_once $_SERVER['DOCUMENT_ROOT'] . '/include/shared-manual.inc';
$TOC = array();
$PARENTS = array();
include_once dirname(__FILE__) ."/toc/ref.var.inc";
$setup = array (
'home' =>
array (
0 => 'index.php',
1 => 'PHP Manual',
),
'head' =>
array (
0 => 'UTF-8',
1 => 'fr',
),
'this' =>
array (
0 => 'function.is-float.php',
1 => 'is_float',
),
'up' =>
array (
0 => 'ref.var.php',
1 => 'Fonctions de gestion des variables',
),
'prev' =>
array (
0 => 'function.is-double.php',
1 => 'is_double',
),
'next' =>
array (
0 => 'function.is-int.php',
1 => 'is_int',
),
'alternatives' =>
array (
),
);
$setup["toc"] = $TOC;
$setup["parents"] = $PARENTS;
manual_setup($setup);
manual_header();
?>
<div id="function.is-float" class="refentry">
<div class="refnamediv">
<h1 class="refname">is_float</h1>
<p class="verinfo">(PHP 4, PHP 5)</p><p class="refpurpose"><span class="refname">is_float</span> — <span class="dc-title">Détermine si une variable est de type nombre décimal</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.is-float-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">bool</span> <span class="methodname"><strong>is_float</strong></span>
( <span class="methodparam"><span class="type"><a href="language.pseudo-types.php#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter">$var</code></span>
)</div>
<p class="para rdfs-comment">
Détermine si la variable donnée est de type nombre décimal.
</p>
<blockquote class="note"><p><strong class="note">Note</strong>:
<p class="para">
Pour tester si une variable est un nombre ou une chaîne numérique
(comme les entrées de formulaire, qui sont toujours des chaînes),
vous devez utiliser la fonction <span class="function"><a href="function.is-numeric.php" class="function">is_numeric()</a></span>.
</p>
</p></blockquote>
</div>
<div class="refsect1 parameters" id="refsect1-function.is-float-parameters">
<h3 class="title">Liste de paramètres</h3>
<p class="para">
<dl>
<dt>
<span class="term"><em><code class="parameter">var</code></em></span>
<dd>
<p class="para">
La variable à évaluer.
</p>
</dd>
</dt>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.is-float-returnvalues">
<h3 class="title">Valeurs de retour</h3>
<p class="para">
Retourne <strong><code>TRUE</code></strong> si <em><code class="parameter">var</code></em> est un <a href="language.types.float.php" class="link">nombre décimal</a>,
<strong><code>FALSE</code></strong> sinon.
</p>
</div>
<div class="refsect1 examples" id="refsect1-function.is-float-examples">
<h3 class="title">Exemples</h3>
<p class="para">
<div class="example" id="example-5146">
<p><strong>Exemple #1 Exemple avec <span class="function"><strong>is_float()</strong></span></strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br /></span><span style="color: #007700">if (</span><span style="color: #0000BB">is_float</span><span style="color: #007700">(</span><span style="color: #0000BB">27.25</span><span style="color: #007700">)) {<br /> echo </span><span style="color: #DD0000">"is float\n"</span><span style="color: #007700">;<br />} else {<br /> echo </span><span style="color: #DD0000">"is not float\n"</span><span style="color: #007700">;<br />}<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">is_float</span><span style="color: #007700">(</span><span style="color: #DD0000">'abc'</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">is_float</span><span style="color: #007700">(</span><span style="color: #0000BB">23</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">is_float</span><span style="color: #007700">(</span><span style="color: #0000BB">23.5</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">is_float</span><span style="color: #007700">(</span><span style="color: #0000BB">1e7</span><span style="color: #007700">)); </span><span style="color: #FF8000">//Notation Scientifique<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">is_float</span><span style="color: #007700">(</span><span style="color: #0000BB">true</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
<div class="example-contents"><p>L'exemple ci-dessus va afficher :</p></div>
<div class="example-contents screen">
<div class="cdata"><pre>
is float
bool(false)
bool(false)
bool(true)
bool(true)
bool(false)
</pre></div>
</div>
</div>
</p>
</div>
<div class="refsect1 seealso" id="refsect1-function.is-float-seealso">
<h3 class="title">Voir aussi</h3>
<p class="para">
<ul class="simplelist">
<li class="member"> <span class="function"><a href="function.is-bool.php" class="function" rel="rdfs-seeAlso">is_bool()</a> - Détermine si une variable est un booléen</span></li>
<li class="member"> <span class="function"><a href="function.is-int.php" class="function" rel="rdfs-seeAlso">is_int()</a> - Détermine si une variable est de type nombre entier</span></li>
<li class="member"> <span class="function"><a href="function.is-numeric.php" class="function" rel="rdfs-seeAlso">is_numeric()</a> - Détermine si une variable est un type numérique</span></li>
<li class="member"> <span class="function"><a href="function.is-string.php" class="function" rel="rdfs-seeAlso">is_string()</a> - Détermine si une variable est de type chaîne de caractères</span></li>
<li class="member"> <span class="function"><a href="function.is-array.php" class="function" rel="rdfs-seeAlso">is_array()</a> - Détermine si une variable est un tableau</span></li>
<li class="member"> <span class="function"><a href="function.is-object.php" class="function" rel="rdfs-seeAlso">is_object()</a> - Détermine si une variable est de type objet</span></li>
</ul>
</p>
</div>
</div><?php manual_footer(); ?>
