处理大数据量时，如何通过 settype() 保证良好的性能？

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</span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"<h1>处理大数据量时，如何通过 settype() 保证良好的性能？</h1>"</span></span><span>;

</span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"<p>在 PHP 中处理大数据量时，类型转换是性能优化中常被忽略的一环。PHP 是一种弱类型语言，变量的类型可以动态变化，但在处理数百万条数据时，不恰当的类型转换会造成显著的性能损耗。本文将介绍如何利用 <code>settype()

\$data = ['1.2', '3.4', '5.6', ...]; // 百万条数据
foreach (\$data as &\$value) {
    settype(\$value, 'float');
}
unset(\$value); // 解除引用，防止潜在问题