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<title>set — php-twig-doc 2.4.6 documentation</title>
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<h1><code class="docutils literal"><span class="pre">set</span></code><a class="headerlink" href="#set" title="Permalink to this headline">¶</a></h1>
<p>Inside code blocks you can also assign values to variables. Assignments use
the <code class="docutils literal"><span class="pre">set</span></code> tag and can have multiple targets.</p>
<p>Here is how you can assign the <code class="docutils literal"><span class="pre">bar</span></code> value to the <code class="docutils literal"><span class="pre">foo</span></code> variable:</p>
<div class="highlight-jinja"><div class="highlight"><pre><span></span><span class="cp">{%</span> <span class="k">set</span> <span class="nv">foo</span> <span class="o">=</span> <span class="s1">'bar'</span> <span class="cp">%}</span><span class="x"></span>
</pre></div>
</div>
<p>After the <code class="docutils literal"><span class="pre">set</span></code> call, the <code class="docutils literal"><span class="pre">foo</span></code> variable is available in the template like
any other ones:</p>
<div class="highlight-jinja"><div class="highlight"><pre><span></span><span class="c">{# displays bar #}</span><span class="x"></span>
<span class="cp">{{</span> <span class="nv">foo</span> <span class="cp">}}</span><span class="x"></span>
</pre></div>
</div>
<p>The assigned value can be any valid <a class="reference internal" href="../templates.html#twig-expressions"><span class="std std-ref">Twig expressions</span></a>:</p>
<div class="highlight-jinja"><div class="highlight"><pre><span></span><span class="cp">{%</span> <span class="k">set</span> <span class="nv">foo</span> <span class="o">=</span> <span class="o">[</span><span class="m">1</span><span class="o">,</span> <span class="m">2</span><span class="o">]</span> <span class="cp">%}</span><span class="x"></span>
<span class="cp">{%</span> <span class="k">set</span> <span class="nv">foo</span> <span class="o">=</span> <span class="o">{</span><span class="s1">'foo'</span><span class="o">:</span> <span class="s1">'bar'</span><span class="o">}</span> <span class="cp">%}</span><span class="x"></span>
<span class="cp">{%</span> <span class="k">set</span> <span class="nv">foo</span> <span class="o">=</span> <span class="s1">'foo'</span> <span class="o">~</span> <span class="s1">'bar'</span> <span class="cp">%}</span><span class="x"></span>
</pre></div>
</div>
<p>Several variables can be assigned in one block:</p>
<div class="highlight-jinja"><div class="highlight"><pre><span></span><span class="cp">{%</span> <span class="k">set</span> <span class="nv">foo</span><span class="o">,</span> <span class="nv">bar</span> <span class="o">=</span> <span class="s1">'foo'</span><span class="o">,</span> <span class="s1">'bar'</span> <span class="cp">%}</span><span class="x"></span>
<span class="c">{# is equivalent to #}</span><span class="x"></span>
<span class="cp">{%</span> <span class="k">set</span> <span class="nv">foo</span> <span class="o">=</span> <span class="s1">'foo'</span> <span class="cp">%}</span><span class="x"></span>
<span class="cp">{%</span> <span class="k">set</span> <span class="nv">bar</span> <span class="o">=</span> <span class="s1">'bar'</span> <span class="cp">%}</span><span class="x"></span>
</pre></div>
</div>
<p>The <code class="docutils literal"><span class="pre">set</span></code> tag can also be used to ‘capture’ chunks of text:</p>
<div class="highlight-jinja"><div class="highlight"><pre><span></span><span class="cp">{%</span> <span class="k">set</span> <span class="nv">foo</span> <span class="cp">%}</span><span class="x"></span>
<span class="x"> <div id="pagination"></span>
<span class="x"> ...</span>
<span class="x"> </div></span>
<span class="cp">{%</span> <span class="k">endset</span> <span class="cp">%}</span><span class="x"></span>
</pre></div>
</div>
<div class="admonition caution">
<p class="first admonition-title">Caution</p>
<p class="last">If you enable automatic output escaping, Twig will only consider the
content to be safe when capturing chunks of text.</p>
</div>
<div class="admonition note">
<p class="first admonition-title">Note</p>
<p>Note that loops are scoped in Twig; therefore a variable declared inside a
<code class="docutils literal"><span class="pre">for</span></code> loop is not accessible outside the loop itself:</p>
<div class="highlight-jinja"><div class="highlight"><pre><span></span><span class="cp">{%</span> <span class="k">for</span> <span class="nv">item</span> <span class="k">in</span> <span class="nv">list</span> <span class="cp">%}</span><span class="x"></span>
<span class="x"> </span><span class="cp">{%</span> <span class="k">set</span> <span class="nv">foo</span> <span class="o">=</span> <span class="nv">item</span> <span class="cp">%}</span><span class="x"></span>
<span class="cp">{%</span> <span class="k">endfor</span> <span class="cp">%}</span><span class="x"></span>
<span class="c">{# foo is NOT available #}</span><span class="x"></span>
</pre></div>
</div>
<p>If you want to access the variable, just declare it before the loop:</p>
<div class="last highlight-jinja"><div class="highlight"><pre><span></span><span class="cp">{%</span> <span class="k">set</span> <span class="nv">foo</span> <span class="o">=</span> <span class="s2">""</span> <span class="cp">%}</span><span class="x"></span>
<span class="cp">{%</span> <span class="k">for</span> <span class="nv">item</span> <span class="k">in</span> <span class="nv">list</span> <span class="cp">%}</span><span class="x"></span>
<span class="x"> </span><span class="cp">{%</span> <span class="k">set</span> <span class="nv">foo</span> <span class="o">=</span> <span class="nv">item</span> <span class="cp">%}</span><span class="x"></span>
<span class="cp">{%</span> <span class="k">endfor</span> <span class="cp">%}</span><span class="x"></span>
<span class="c">{# foo is available #}</span><span class="x"></span>
</pre></div>
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