Home > Article > Backend Development > php heredoc original document and nowdoc syntax

php heredoc original document and nowdoc syntax

WBOYOriginal: 2016-08-08 09:20:421235browse

<!doctype html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <title>Current To-Do List</title>
</head>
<body>
<?php
    function make_list($parent) {
        global $tasks;
        echo '<ol>';

        foreach($parent as $task_id => $todo) {
            echo <<<EOT
<li><input type="checkbox" name="tasks[$task_id]" value="done"> $todo
EOT;

            if (isset($tasks[$task_id])) { // 如果当前id有子任务则递归创建菜单
                make_list($tasks[$task_id]);
            }

            echo "</li>";
        }

        echo '</ol>';
    }

    $db = mysqli_connect('192.168.31.172' ,'root', 'root', 'phpadvanced');
    mysqli_query($db, "set names utf8");

    if (($_SERVER['REQUEST_METHOD'] == 'POST') && isset($_POST['tasks']) && is_array($_POST['tasks']) && !empty($_POST['tasks'])) {

        $q = 'UPDATE tasks SET date_completed=NOW() WHERE task_id IN (';
        foreach($_POST['tasks'] as $task_id => $v) {
            $q .= $task_id.', ';
        }
        $q = substr($q, 0, -2) . ')';

        $r = mysqli_query($db, $q);

        if(mysqli_affected_rows($db) == count($_POST['tasks'])) {
            echo '<p>选择的任务已经标记完成</p>';
        } else {
            echo '<p>选择的任务不能被标记为完成</p>';
        }
    }

    $q = 'SELECT task_id, parent_id, task FROM tasks WHERE date_completed="0000-00-00 00:00:00" ORDER BY parent_id, date_added ASC';
    $r = mysqli_query($db, $q);

    $tasks = array();
while (list($task_id, $parent_id, $task) = mysqli_fetch_array($r, MYSQLI_NUM)) {
    $tasks[$parent_id][$task_id] = $task;
}
//echo '<pre class="brush:php;toolbar:false">'.print_r($tasks,1).'

'; // 这是原文档, heredoc格式 echo <<点击检查框, 标记为完成. (任务本身已经所有的子任务都将不会出现在这个列表)

EOT; ?>

The above introduces the original php heredoc document and nowdoc syntax, including the relevant content. I hope it will be helpful to friends who are interested in PHP tutorials.

Statement：

The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Previous article：CI framework learning essayNext article：CI framework learning essay

See more

php heredoc original document and nowdoc syntax

Related articles