怎么按行读取文本框中提交的字符串，并存入到数组中</h1> <div class="article-meta"> <span class="meta-date"><i class="far fa-clock me-1"></i>2023-06-06</span> <span class="meta-cat-dot"><i class="far fa-folder me-1"></i><a href="https://www.chibeauty.top/category/%e7%bd%91%e7%ab%99%e5%bb%ba%e8%ae%be">网站建设</a></span> <span class="meta-fav d-none d-md-inline-block"><i class="far fa-star me-1"></i>0</span> <span class="meta-likes d-none d-md-inline-block"><i class="far fa-heart me-1"></i>0</span> <span class="meta-views"><i class="far fa-eye me-1"></i>0</span> <span class="meta-comment"><a href="https://www.chibeauty.top/920.html#comments"><i class="far fa-comments me-1"></i>0</a></span> <span class="meta-edit"></span></span> </div> </div> </div> </div> <div class="container mt-2 mt-sm-4"> <div class="row g-2 g-md-3 g-lg-4"> <div class="content-wrapper col-md-12 col-lg-9" data-sticky-content> <div class="card"> <div class="single-content-nav"> <ul class="nav nav-pills" id="pills-tab" role="tablist"> <li 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<p>要按行读取 <code><textarea></code> 文本框中提交的字符串，并将每行存入数组中，可以使用 PHP 的 <code>explode()</code> 函数来实现。将提交的字符串按换行符 <code>\n</code> 进行分割，得到每行的字符串，然后存入数组。下面是示例代码：</p> <p>// 获取提交的字符串<br /> $text = $_POST[‘textarea_name’]; // 将 textarea_name 替换为实际的 textarea 名称</p> <p>// 按行分割字符串，并存入数组<br /> $lines = explode(“\n”, $text);<br /> $result = array();</p> <p>foreach ($lines as $line) {<br /> $line = trim($line); // 去除每行的首尾空白字符<br /> if (!empty($line)) {<br /> $result[] = $line; // 将非空行添加到数组<br /> }<br /> }</p> <p>print_r($result);</p> <p>在上述代码中，通过 <code>$_POST['textarea_name']</code> 获取提交的字符串，然后使用 <code>explode()</code> 函数按换行符 <code>\n</code> 进行分割，得到每行的字符串。然后通过 <code>foreach</code> 循环遍历每行字符串，使用 <code>trim()</code> 函数去除每行的首尾空白字符，并将非空行存入 <code>$result</code> 数组。</p> <p>执行上述代码，会输出按行存入数组后的结果。</p> <p>请注意将代码中的 <code>'textarea_name'</code> 替换为实际的 <code><textarea></code> 的名称。另外，这段代码假设提交的字符串是通过 POST 方法传递的，你可以根据实际情况调整获取提交字符串的方式。</p> <div class="entry-copyright"> <i class="fas fa-info-circle 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