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</div><hr /><div id="function.echo" class="refentry">
<div class="refnamediv">
<h1 class="refname">echo</h1>
<p class="verinfo">(PHP 4, PHP 5)</p><p class="refpurpose"><span class="refname">echo</span> — <span class="dc-title">Output one or more strings</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.echo-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type"><span class="type void">void</span></span> <span class="methodname"><strong>echo</strong></span>
( <span class="methodparam"><span class="type">string</span> <code class="parameter">$arg1</code></span>
[, <span class="methodparam"><span class="type">string</span> <code class="parameter">$...</code></span>
] )</div>
<p class="simpara">
Outputs all parameters.
</p>
<p class="para">
<em>echo</em> is not actually a function (it is a
language construct), so you are not required to use parentheses
with it. <em>echo</em> (unlike some other language
constructs) does not behave like a function, so it cannot
always be used in the context of a function. Additionally, if you want to
pass more than one parameter to <em>echo</em>, the parameters
must not be enclosed within parentheses.
</p>
<p class="para">
<em>echo</em> also has a shortcut syntax, where you can
immediately follow the opening tag with an equals sign. Prior to PHP 5.4.0,
this short syntax only works with the
<a href="ini.core.html#ini.short-open-tag" class="link">short_open_tag</a> configuration
setting enabled.
<div class="informalexample">
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
I have <span style="color: #0000BB"><?=$foo?></span> foo.</span>
</code></div>
</div>
</div>
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.echo-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<span class="term"><em><code class="parameter">arg1</code></em></span>
<dd>
<p class="para">
The parameter to output.
</p>
</dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">...</code></em></span>
<dd>
<p class="para">
</p>
</dd>
</dt>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.echo-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
No value is returned.
</p>
</div>
<div class="refsect1 examples" id="refsect1-function.echo-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="example-4827">
<p><strong>Example #1 <em>echo</em> examples</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br /></span><span style="color: #007700">echo </span><span style="color: #DD0000">"Hello World"</span><span style="color: #007700">;<br /><br />echo </span><span style="color: #DD0000">"This spans<br />multiple lines. The newlines will be<br />output as well"</span><span style="color: #007700">;<br /><br />echo </span><span style="color: #DD0000">"This spans\nmultiple lines. The newlines will be\noutput as well."</span><span style="color: #007700">;<br /><br />echo </span><span style="color: #DD0000">"Escaping characters is done \"Like this\"."</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">// You can use variables inside of an echo statement<br /></span><span style="color: #0000BB">$foo </span><span style="color: #007700">= </span><span style="color: #DD0000">"foobar"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$bar </span><span style="color: #007700">= </span><span style="color: #DD0000">"barbaz"</span><span style="color: #007700">;<br /><br />echo </span><span style="color: #DD0000">"foo is </span><span style="color: #0000BB">$foo</span><span style="color: #DD0000">"</span><span style="color: #007700">; </span><span style="color: #FF8000">// foo is foobar<br /><br />// You can also use arrays<br /></span><span style="color: #0000BB">$baz </span><span style="color: #007700">= array(</span><span style="color: #DD0000">"value" </span><span style="color: #007700">=> </span><span style="color: #DD0000">"foo"</span><span style="color: #007700">);<br /><br />echo </span><span style="color: #DD0000">"this is </span><span style="color: #007700">{</span><span style="color: #0000BB">$baz</span><span style="color: #007700">[</span><span style="color: #DD0000">'value'</span><span style="color: #007700">]}</span><span style="color: #DD0000"> !"</span><span style="color: #007700">; </span><span style="color: #FF8000">// this is foo !<br /><br />// Using single quotes will print the variable name, not the value<br /></span><span style="color: #007700">echo </span><span style="color: #DD0000">'foo is $foo'</span><span style="color: #007700">; </span><span style="color: #FF8000">// foo is $foo<br /><br />// If you are not using any other characters, you can just echo variables<br /></span><span style="color: #007700">echo </span><span style="color: #0000BB">$foo</span><span style="color: #007700">; </span><span style="color: #FF8000">// foobar<br /></span><span style="color: #007700">echo </span><span style="color: #0000BB">$foo</span><span style="color: #007700">,</span><span style="color: #0000BB">$bar</span><span style="color: #007700">; </span><span style="color: #FF8000">// foobarbarbaz<br /><br />// Some people prefer passing multiple parameters to echo over concatenation.<br /></span><span style="color: #007700">echo </span><span style="color: #DD0000">'This '</span><span style="color: #007700">, </span><span style="color: #DD0000">'string '</span><span style="color: #007700">, </span><span style="color: #DD0000">'was '</span><span style="color: #007700">, </span><span style="color: #DD0000">'made '</span><span style="color: #007700">, </span><span style="color: #DD0000">'with multiple parameters.'</span><span style="color: #007700">, </span><span style="color: #0000BB">chr</span><span style="color: #007700">(</span><span style="color: #0000BB">10</span><span style="color: #007700">);<br />echo </span><span style="color: #DD0000">'This ' </span><span style="color: #007700">. </span><span style="color: #DD0000">'string ' </span><span style="color: #007700">. </span><span style="color: #DD0000">'was ' </span><span style="color: #007700">. </span><span style="color: #DD0000">'made ' </span><span style="color: #007700">. </span><span style="color: #DD0000">'with concatenation.' </span><span style="color: #007700">. </span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /><br />echo <<<END<br /></span><span style="color: #DD0000">This uses the "here document" syntax to output<br />multiple lines with </span><span style="color: #0000BB">$variable</span><span style="color: #DD0000"> interpolation. Note<br />that the here document terminator must appear on a<br />line with just a semicolon. no extra whitespace!<br /></span><span style="color: #007700">END;<br /><br /></span><span style="color: #FF8000">// Because echo does not behave like a function, the following code is invalid.<br /></span><span style="color: #007700">(</span><span style="color: #0000BB">$some_var</span><span style="color: #007700">) ? echo </span><span style="color: #DD0000">'true' </span><span style="color: #007700">: echo </span><span style="color: #DD0000">'false'</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">// However, the following examples will work:<br /></span><span style="color: #007700">(</span><span style="color: #0000BB">$some_var</span><span style="color: #007700">) ? print </span><span style="color: #DD0000">'true' </span><span style="color: #007700">: print </span><span style="color: #DD0000">'false'</span><span style="color: #007700">; </span><span style="color: #FF8000">// print is also a construct, but<br /> // it behaves like a function, so<br /> // it may be used in this context.<br /></span><span style="color: #007700">echo </span><span style="color: #0000BB">$some_var </span><span style="color: #007700">? </span><span style="color: #DD0000">'true'</span><span style="color: #007700">: </span><span style="color: #DD0000">'false'</span><span style="color: #007700">; </span><span style="color: #FF8000">// changing the statement around<br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
</div>
</p>
</div>
<div class="refsect1 notes" id="refsect1-function.echo-notes">
<h3 class="title">Notes</h3>
<blockquote class="note"><p><strong class="note">Note</strong>: <span class="simpara">Because this is a
language construct and not a function, it cannot be called using
<a href="functions.variable-functions.html" class="link">variable functions</a>.</span>
</p></blockquote>
</div>
<div class="refsect1 seealso" id="refsect1-function.echo-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<li class="member"> <span class="function"><a href="function.print.html" class="function" rel="rdfs-seeAlso">print</a> - Output a string</span></li>
<li class="member"> <span class="function"><a href="function.printf.html" class="function" rel="rdfs-seeAlso">printf()</a> - Output a formatted string</span></li>
<li class="member"> <span class="function"><a href="function.flush.html" class="function" rel="rdfs-seeAlso">flush()</a> - Flush the output buffer</span></li>
<li class="member"><a href="language.types.string.html#language.types.string.syntax.heredoc" class="link">Heredoc syntax</a></li>
</ul>
</p>
</div>
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