chr

Nom:chr

Catégorie:Chaîne

Langage de programmation:php

Description en une ligne:Renvoie un caractère de la valeur ASCII spécifiée.

Exemple

Exemple 1

Retour des caractères de différentes valeurs ASCII:

 <span class="token php language-php"><span class="token delimiter important"><? Php</span>
<span class="token keyword">Echo</span> <span class="token function">Chr</span> <span class="token punctuation">(</span> <span class="token number">61</span> <span class="token punctuation">)</span> <span class="token operator">.</span> <span class="token string double-quoted-string">"<br>"</span> <span class="token punctuation">;</span> <span class="token comment">// décimal</span>
<span class="token keyword">Echo</span> <span class="token function">Chr</span> <span class="token punctuation">(</span> <span class="token number">061</span> <span class="token punctuation">)</span> <span class="token operator">.</span> <span class="token string double-quoted-string">"<br>"</span> <span class="token punctuation">;</span> <span class="token comment">// valeur octale</span>
<span class="token keyword">Echo</span> <span class="token function">Chr</span> <span class="token punctuation">(</span> <span class="token number">0x61</span> <span class="token punctuation">)</span> <span class="token operator">.</span> <span class="token string double-quoted-string">"<br>"</span> <span class="token punctuation">;</span> <span class="token comment">// valeur hexadécimale</span>
<span class="token delimiter important">?></span></span>

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Exemple 2

Utilisez la valeur octale 046 pour ajouter le caractère ASCII: &.

 <span class="token php language-php"><span class="token delimiter important"><? Php</span>
<span class="token variable">$ str</span> <span class="token operator">=</span> <span class="token function">chr</span> <span class="token punctuation">(</span> <span class="token number">046</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token keyword">Echo</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"You <span class="token interpolation"><span class="token variable">$ Str</span></span> Me Forever!"</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

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Exemple 3

Utilisez des valeurs décimales 43 et 61 pour ajouter des caractères ASCII: + et =.

 <span class="token php language-php"><span class="token delimiter important"><? Php</span>
<span class="token variable">$ str</span> <span class="token operator">=</span> <span class="token function">chr</span> <span class="token punctuation">(</span> <span class="token number">43</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token variable">$ str2</span> <span class="token operator">=</span> <span class="token function">chr</span> <span class="token punctuation">(</span> <span class="token number">61</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token keyword">Echo</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"2 <span class="token interpolation"><span class="token variable">$ str</span></span> 2 <span class="token interpolation"><span class="token variable">$ str2</span></span> 4"</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

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