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<title>Encrypt a PHP script with BLENC.</title>
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</div><hr /><div id="function.blenc-encrypt" class="refentry">
<div class="refnamediv">
<h1 class="refname">blenc_encrypt</h1>
<p class="verinfo">(PECL blenc >= 5)</p><p class="refpurpose"><span class="refname">blenc_encrypt</span> — <span class="dc-title">
Encrypt a PHP script with BLENC.
</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.blenc-encrypt-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">string</span> <span class="methodname"><strong>blenc_encrypt</strong></span>
( <span class="methodparam"><span class="type">string</span> <code class="parameter">$plaintext</code></span>
, <span class="methodparam"><span class="type">string</span> <code class="parameter">$encodedfile</code></span>
[, <span class="methodparam"><span class="type">string</span> <code class="parameter">$encryption_key</code></span>
] )</div>
<p class="para rdfs-comment">
Encrypt the plaintext content and write it into encodedfile
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.blenc-encrypt-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<span class="term">
<em><code class="parameter">plaintext</code></em>
</span>
<dd>
<p class="para">
A source code to encrypt. Does not need to contain opening/closing PHP tags
</p>
</dd>
</dt>
<dt>
<span class="term">
<em><code class="parameter">encodedfile</code></em>
</span>
<dd>
<p class="para">
The filename where BLENC will save the encoded source.
</p>
</dd>
</dt>
<dt>
<span class="term">
<em><code class="parameter">encryption_key</code></em>
</span>
<dd>
<p class="para">
The key that BLENC will use to encrypt plaintext content. If not given
BLENC will create a valid key.
</p>
</dd>
</dt>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.blenc-encrypt-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
BLENC will return the redistributable key that must be saved into key_file:
the path of key_file is specified at runtime with the option blenc.key_file
</p>
</div>
<div class="refsect1 examples" id="refsect1-function.blenc-encrypt-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="example-447">
<p><strong>Example #1 <span class="function"><strong>blenc_encrypt()</strong></span> example </strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br /><br /></span><span style="color: #FF8000">/* read the PHP source code */<br /></span><span style="color: #0000BB">$source_code </span><span style="color: #007700">= </span><span style="color: #0000BB">file_get_contents</span><span style="color: #007700">(</span><span style="color: #DD0000">"my_source_to_protect.php"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* create the encrypted version */<br /></span><span style="color: #0000BB">$redistributable_key </span><span style="color: #007700">= </span><span style="color: #0000BB">blenc_encrypt</span><span style="color: #007700">(</span><span style="color: #0000BB">$source_code</span><span style="color: #007700">, </span><span style="color: #DD0000">"my_source_encoded.php"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* read which is the key_file */<br /></span><span style="color: #0000BB">$key_file </span><span style="color: #007700">= </span><span style="color: #0000BB">ini_get</span><span style="color: #007700">(</span><span style="color: #DD0000">'blenc.key_file'</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* save the redistributable key */<br /></span><span style="color: #0000BB">file_put_contents</span><span style="color: #007700">(</span><span style="color: #0000BB">$key_file</span><span style="color: #007700">, </span><span style="color: #0000BB">$redistributable_key</span><span style="color: #007700">, </span><span style="color: #0000BB">FILE_APPEND</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
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