echo

Nom:echo

Catégorie:Chaîne

Langage de programmation:php

Description en une ligne:Sortir une ou plusieurs cordes.

Exemple

Exemple 1

Texte de sortie:

 <span class="token php language-php"><span class="token delimiter important"><? Php</span>
<span class="token keyword">Echo</span> <span class="token string double-quoted-string">"Hello World!"</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

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Exemple 2

Écrivez la valeur de la variable de chaîne ($ str) à la sortie:

 <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 string double-quoted-string">"Hello World!"</span> <span class="token punctuation">;</span>
<span class="token keyword">Echo</span> <span class="token variable">$ str</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

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Exemple 3

Écrivez la valeur de la variable de chaîne ($ str) à la sortie, y compris les balises HTML:

 <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 string double-quoted-string">"Hello World!"</span> <span class="token punctuation">;</span>
<span class="token keyword">Echo</span> <span class="token variable">$ str</span> <span class="token punctuation">;</span>
<span class="token keyword">Echo</span> <span class="token string double-quoted-string">"<br> Quelle belle journée!"</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

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Exemple 4

Concaténer deux variables de chaîne:

 <span class="token php language-php"><span class="token delimiter important"><? Php</span>
<span class="token variable">$ str1</span> <span class="token operator">=</span> <span class="token string double-quoted-string">"Hello World!"</span> <span class="token punctuation">;</span>
<span class="token variable">$ str2</span> <span class="token operator">=</span> <span class="token string double-quoted-string">"Quelle belle journée!"</span> <span class="token punctuation">;</span>
<span class="token keyword">ECHO</span> <span class="token variable">$ STR1</span> <span class="token operator">.</span> <span class="token string double-quoted-string">""</span> <span class="token operator">.</span> <span class="token variable">$ str2</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

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Exemple 5

Écrivez des valeurs de tableau à la sortie:

 <span class="token php language-php"><span class="token delimiter important"><? Php</span>
<span class="token variable">$ Age</span> <span class="token operator">=</span> <span class="token keyword">Array</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"Peter"</span> <span class="token operator">=></span> <span class="token string double-quoted-string">"35"</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token keyword">Echo</span> <span class="token string double-quoted-string">"Peter est"</span> <span class="token operator">.</span> <span class="token variable">$ Âge</span> <span class="token punctuation">[</span> <span class="token string single-quoted-string">&#39;Peter&#39;</span> <span class="token punctuation">]</span> <span class="token operator">.</span> <span class="token string double-quoted-string">"ans."</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

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Exemple 6

Écrire du texte à la sortie:

 <span class="token php language-php"><span class="token delimiter important"><? Php</span>
<span class="token keyword">Echo</span> <span class="token string double-quoted-string">"Ce texte
s&#39;étend multiple
lignes. "</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

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Exemple 7

Comment utiliser plusieurs paramètres:

 <span class="token php language-php"><span class="token delimiter important"><? Php</span>
<span class="token keyword">Echo</span> <span class="token string single-quoted-string">&#39;This&#39;</span> <span class="token punctuation">,</span> <span class="token string single-quoted-string">&#39;String&#39;</span> <span class="token punctuation">,</span> <span class="token string single-quoted-string">&#39;était&#39;</span> <span class="token punctuation">,</span> <span class="token string single-quoted-string">&#39;Made&#39;</span> <span class="token punctuation">,</span> <span class="token string single-quoted-string">&#39;avec plusieurs paramètres.&#39;</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

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Exemple 8

La différence entre les citations simples et les citations doubles. Les devis uniques publieront le nom de la variable, pas la valeur:

 <span class="token php language-php"><span class="token delimiter important"><? Php</span>
<span class="token variable">$ color</span> <span class="token operator">=</span> <span class="token string double-quoted-string">"red"</span> <span class="token punctuation">;</span>
<span class="token keyword">Echo</span> <span class="token string double-quoted-string">"Les roses sont <span class="token interpolation"><span class="token variable">$ couleur</span></span> "</span> <span class="token punctuation">;</span>
<span class="token keyword">écho</span> <span class="token string double-quoted-string">"<br>"</span> <span class="token punctuation">;</span>
<span class="token keyword">Echo</span> <span class="token string single-quoted-string">«Les roses sont $ couleurs»</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

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Exemple 9

Syntaxe simplifiée (uniquement applicable aux paramètres de configuration Short_Open_TAG activés):

 <span class="token php language-php"><span class="token delimiter important"><? Php</span>
<span class="token variable">$ color</span> <span class="token operator">=</span> <span class="token string double-quoted-string">"red"</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

<span class="token tag"><span class="token tag"><span class="token punctuation"><p></span></span> <span class="token punctuation">Les</span></span> roses sont <span class="token php language-php"><span class="token delimiter important"><? =</span> <span class="token variable">$ couleur</span> <span class="token delimiter important">?</span></span> <span class="token tag"><span class="token punctuation">></span> <span class="token tag"><span class="token punctuation"></p></span></span></span>

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