javascript 将 onClick 操作放入 echo 语句的语法
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Syntax for putting an onClick action in an echo statement
提问by Eric
What would be the correct syntax for the onClick attribute in the following:
下面的 onClick 属性的正确语法是什么：
<?php
if($_resp['user']) {
echo '<div class="logo"><a href="http://www.example.com/" onClick="_gaq.push(['_trackEvent', 'Join', 'Home', 'BigButton']);">Link Text</a>';
}
?>
回答by Michael Berkowski
Since you are nesting both double and single quotes, you will need to escape the single quotes in the onClickwith backslashes.
由于您同时嵌套双引号和单引号，因此您需要onClick使用反斜杠对单引号进行转义。
echo '<div class="logo"><a href="http://www.example.com/" onClick="_gaq.push([\'_trackEvent\', \'Join\', \'Home\', \'BigButton\']);">Link Text</a>';
回答by Marc B
Consider using a HEREDOC
考虑使用 HEREDOC
if ($_resp['user']) {
echo <<<EOL
<div class="logo"><a href="http://www.example.com/" onClick="_gaq.push(['_trackEvent', 'Join', 'Home', 'BigButton']);">Link Text</a>
EOL;
}
or dropping out of PHP mode:
或退出 PHP 模式：
if ($_resp['user']) { ?>
<div class="logo"><a href="http://www.example.com/" onClick="_gaq.push(['_trackEvent', 'Join', 'Home', 'BigButton']);">Link Text</a>
<?php }
Both get the job done, and eliminate any need to escape quotes inside the html/javascript you're generating
两者都完成了工作，并且无需在您生成的 html/javascript 中转义引号
回答by pimvdb
You can mix HTML and PHP, so you might want to simply move it out of PHP:
您可以混合使用 HTML 和 PHP，因此您可能只想将其从 PHP 中移出：
<?php
if($_resp['user']) {
?>
<div class="logo"><a href="http://www.example.com/" onClick="_gaq.push(['_trackEvent', 'Join', 'Home', 'BigButton']);">Link Text</a>
<?
}
?>
