Question

我想使用php将一个单词的所有出现替换为另一个单词。我希望我的HTML代码能够反映出我所做的相应更改。

<?php
$strhtml = '<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>time</title>
</head>
<body>
<p id="post">Hello, How are you</p>

</body>
</html>';
$dochtml = new DOMDocument();
$dochtml->loadHTML($strhtml);
$elm = $dochtml->getElementById('post');
$c = $elm->nodeValue;
$d= date("H");
if ($d<11)
str_replace("Hello","Good Morning",$c)
?>

Answer 1

您可以使用$dochtml->saveHTML()函数将DOMDocument对象解析为html内容。这段代码对我有用。

<?php
    $strhtml = '<!DOCTYPE html>
    <html>
    <head>
    <meta charset="utf-8" />
    <title>time</title>
    </head>
    <body>
    <p id="post">Hello, How are you</p>

    </body>
    </html>';
    $dochtml = new DOMDocument();
    $dochtml->loadHTML($strhtml);
    $elm = $dochtml->getElementById('post');
    $c = $elm->nodeValue;
    $d= date("H");
    if ($d<11){
        $c = str_replace("Hello","Good Morning",$c);
    }

    $dochtml->getElementById('post')->nodeValue = $c;
    echo $dochtml->saveHTML();
    ?>

如何执行html以反映我对PHP所做的更改？

1 个答案: