<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <title>Remove collection documents</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="mysql-xdevapi-collection.modify.html">Collection::modify</a></div> <div class="next" style="text-align: right; float: right;"><a href="mysql-xdevapi-collection.removeone.html">Collection::removeOne</a></div> <div class="up"><a href="class.mysql-xdevapi-collection.html">mysql_xdevapi\Collection</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div><hr /><div id="mysql-xdevapi-collection.remove" class="refentry"> <div class="refnamediv"> <h1 class="refname">Collection::remove</h1> <p class="verinfo">(No version information available, might only be in Git)</p><p class="refpurpose"><span class="refname">Collection::remove</span> — <span class="dc-title">Remove collection documents</span></p> </div> <div class="refsect1 description" id="refsect1-mysql-xdevapi-collection.remove-description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="modifier">public</span> <span class="type"><span class="type mysql_xdevapi\CollectionRemove">mysql_xdevapi\CollectionRemove</span></span> <span class="methodname"><strong>mysql_xdevapi\Collection::remove</strong></span> ( <span class="methodparam"><span class="type">string</span> <code class="parameter">$search_condition</code></span> )</div> <p class="para rdfs-comment"> Remove collections that meet specific search conditions. Multiple operations are allowed, and parameter binding is supported. </p> </div> <div class="refsect1 parameters" id="refsect1-mysql-xdevapi-collection.remove-parameters"> <h3 class="title">Parameters</h3> <dl> <dt> <code class="parameter">search_condition</code></dt> <dd> <p class="para"> Must be a valid SQL expression used to match the documents to modify. This expression might be as simple as <strong><code>TRUE</code></strong>, which matches all documents, or it might use functions and operators such as <code class="code">'CAST(_id AS SIGNED) >= 10'</code>, <code class="code">'age MOD 2 = 0 OR age MOD 3 = 0'</code>, or <code class="code">'_id IN ["2","5","7","10"]'</code>. </p> </dd> </dl> </div> <div class="refsect1 returnvalues" id="refsect1-mysql-xdevapi-collection.remove-returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> If the operation is not executed, then the function will return a Remove object that can be used to add additional remove operations. </p> <p class="para"> If the remove operation is executed, then the returned object will contain the result of the operation. </p> </div> <div class="refsect1 examples" id="refsect1-mysql-xdevapi-collection.remove-examples"> <h3 class="title">Examples</h3> <div class="example" id="example-1992"> <p><strong>Example #1 <span class="function"><strong>mysql_xdevapi\Collection::remove()</strong></span> example</strong></p> <div class="example-contents"> <div class="phpcode"><code><span style="color: #000000"> <span style="color: #0000BB"><?php<br />$session </span><span style="color: #007700">= </span><span style="color: #0000BB">mysql_xdevapi</span><span style="color: #007700">\</span><span style="color: #0000BB">getSession</span><span style="color: #007700">(</span><span style="color: #DD0000">"mysqlx://user:password@localhost"</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$session</span><span style="color: #007700">-></span><span style="color: #0000BB">sql</span><span style="color: #007700">(</span><span style="color: #DD0000">"DROP DATABASE IF EXISTS addressbook"</span><span style="color: #007700">)-></span><span style="color: #0000BB">execute</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">$session</span><span style="color: #007700">-></span><span style="color: #0000BB">sql</span><span style="color: #007700">(</span><span style="color: #DD0000">"CREATE DATABASE addressbook"</span><span style="color: #007700">)-></span><span style="color: #0000BB">execute</span><span style="color: #007700">();<br /><br /></span><span style="color: #0000BB">$schema </span><span style="color: #007700">= </span><span style="color: #0000BB">$session</span><span style="color: #007700">-></span><span style="color: #0000BB">getSchema</span><span style="color: #007700">(</span><span style="color: #DD0000">"addressbook"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$collection </span><span style="color: #007700">= </span><span style="color: #0000BB">$schema</span><span style="color: #007700">-></span><span style="color: #0000BB">createCollection</span><span style="color: #007700">(</span><span style="color: #DD0000">"people"</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$collection</span><span style="color: #007700">-></span><span style="color: #0000BB">add</span><span style="color: #007700">(</span><span style="color: #DD0000">'{"name": "Alfred", "age": 18, "job": "Butler"}'</span><span style="color: #007700">)-></span><span style="color: #0000BB">execute</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">$collection</span><span style="color: #007700">-></span><span style="color: #0000BB">add</span><span style="color: #007700">(</span><span style="color: #DD0000">'{"name": "Bob", "age": 19, "job": "Painter"}'</span><span style="color: #007700">)-></span><span style="color: #0000BB">execute</span><span style="color: #007700">();<br /><br /></span><span style="color: #FF8000">// Remove all painters<br /></span><span style="color: #0000BB">$collection<br /> </span><span style="color: #007700">-></span><span style="color: #0000BB">remove</span><span style="color: #007700">(</span><span style="color: #DD0000">"job in ('Painter')"</span><span style="color: #007700">)<br /> -></span><span style="color: #0000BB">execute</span><span style="color: #007700">();<br /><br /></span><span style="color: #FF8000">// Remove the oldest butler<br /></span><span style="color: #0000BB">$collection<br /> </span><span style="color: #007700">-></span><span style="color: #0000BB">remove</span><span style="color: #007700">(</span><span style="color: #DD0000">"job in ('Butler')"</span><span style="color: #007700">)<br /> -></span><span style="color: #0000BB">sort</span><span style="color: #007700">(</span><span style="color: #DD0000">'age desc'</span><span style="color: #007700">)<br /> -></span><span style="color: #0000BB">limit</span><span style="color: #007700">(</span><span style="color: #0000BB">1</span><span style="color: #007700">)<br /> -></span><span style="color: #0000BB">execute</span><span style="color: #007700">();<br /><br /></span><span style="color: #FF8000">// Remove record with lowest age<br /></span><span style="color: #0000BB">$collection<br /> </span><span style="color: #007700">-></span><span style="color: #0000BB">remove</span><span style="color: #007700">(</span><span style="color: #DD0000">'true'</span><span style="color: #007700">)<br /> -></span><span style="color: #0000BB">sort</span><span style="color: #007700">(</span><span style="color: #DD0000">'age desc'</span><span style="color: #007700">)<br /> -></span><span style="color: #0000BB">limit</span><span style="color: #007700">(</span><span style="color: #0000BB">1</span><span style="color: #007700">)<br /> -></span><span style="color: #0000BB">execute</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">?></span> </span> </code></div> </div> </div> </div> </div><hr /><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="mysql-xdevapi-collection.modify.html">Collection::modify</a></div> <div class="next" 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