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    <h3>Fatal error: Call to a member function ... on a non-object</h3> <p>Happens with code similar to <code>xyz-&gt;method()</code> where <code>xyz</code> is not an object and therefore that <code>method</code> can not be called.</p> <p>This is a fatal error which will stop the script (forward compatibility notice: It will become a catchable error starting with PHP 7).</p> <p>Most often this is a sign that the code has missing checks for error conditions. Validate that an object is actually an object before calling its methods.</p> <p>A <a href="https://stackoverflow.com/search?q=%5Bphp%5D+%5Bpdo%5D+Fatal+error%3A+Call+to+a+member+function+on+a+non-object">typical</a> example would be</p> <pre><code>// ... some code using PDO $statement = $pdo-&gt;prepare('invalid query', ...); $statement-&gt;execute(...); </code></pre> <p>In the example above, the query cannot be prepared and <code>prepare()</code> will assign <code>false</code> to <code>$statement</code>. Trying to call the <code>execute()</code> method will then result in the Fatal Error because <code>false</code> is a "non-object" because the value is a boolean.</p> <p>Figure out <em>why</em> your function returned a boolean instead of an object. For example, check the <code>$pdo</code> object for the last error that occurred. Details on how to debug this will depend on how errors are handled for the particular function/object/class in question.</p> <p>If even the <code>-&gt;prepare</code> is failing then your <code>$pdo</code> database handle object <a href="https://stackoverflow.com/questions/4910796/scope-error-call-to-a-member-function-prepare-on-a-non-object">didn't get passed into the current scope</a>. Find where it got defined. Then pass it as a parameter, store it as property, or share it via the global scope.</p> <p>Another problem may be conditionally creating an object and then trying to call a method outside that conditional block. For example</p> <pre><code>if ($someCondition) { $myObj = new MyObj(); } // ... $myObj-&gt;someMethod(); </code></pre> <p>By attempting to execute the method outside the conditional block, your object may not be defined.</p> <p>Related Questions:</p> <ul> <li><a href="https://stackoverflow.com/q/54566/727208">Call to a member function on a non-object</a></li> <li><a href="https://stackoverflow.com/search?q=%5Bphp%5D+Fatal+error%3A+Call+to+a+member+function+on+a+non-object">List all PHP "Fatal error: Call to a member function ... on a non-object" Questions on Stackoverflow</a></li> </ul>
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