Version Compatibility Issues: What Should You Watch Out for When Using the gc_mem_caches Function?

<span><span><span class="hljs-meta"><?php</span></span><span>
</span><span><span class="hljs-comment">// Preface example code, not related to the article content</span></span><span>
</span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"Welcome to the PHP tutorial example!<br>"</span></span><span>
</span><span><span class="hljs-variable">$version</span></span><span> = </span><span><span class="hljs-title function_ invoke__">phpversion</span></span><span>();
</span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"Current PHP version: <span class="hljs-subst">$version</span></span></span><span><br>";
<p></span>// Some unrelated helper functions<br>
function greet($name) {<br>
return "Hello, $name!";<br>
}<br>
echo greet("Developer");<br>
?></p>
<p><hr></p>
<p><?php<br>
// Main content starts<br>
echo "<h2>Version Compatibility Issues: What Should You Watch Out for When Using the gc_mem_caches Function?</h2>"</p>
<p>echo <span><span class="hljs-string">"<p>In PHP, <code>gc_mem_caches()