Question

我在PHP中使用sprintf()但它在页面上没有显示任何内容。

这就是我正在做的事情：

$lang['request_paragraph']="Please check your email for a message from %s (%s). This message contains instructions for initiating the issuance of a new password for your participant number. If you did not receive the email message from %s within 10-15 minutes, please make sure that your email provider does not have a spam filter that is blocking our email from reaching your Inbox. You will not be able to receive email from us if your email provider is using a mail-blocking device. Click on the button below to send the validation email again if it appears to have been blocked or never received. You will only be able to re-send the validation email 3 more times.";

$company="Company Name";

$admin_email="admin@company.com";

sprintf($lang['request_paragraph'],$company,$admin_email,$company);

对每个字符串执行回显正确显示每个字符串，那么我做错了什么？

我需要使用sprintf()，因为我正在处理语言文件，这比将段落分成语言定义中的部分要简单得多。

Answer 1

sprintf返回一个变量（一个字符串）。

你需要printf

Answer 2

修改为echo sprintf($lang['request_paragraph'],$company,$admin_email,$company);

Answer 3

你也需要回应 sprintf 。

Answer 4

sprintf 函数只是在第一个字符串参数中顺序替换占位符（类型说明符）字符，并且不回显，打印或输出任何内容，只返回格式化字符串。

所以你的代码行：

sprintf($lang['request_paragraph'],$company,$admin_email,$company);

将替换为：

echo sprintf($lang['request_paragraph'],$company,$admin_email,$company);

或

print(sprintf($lang['request_paragraph'],$company,$admin_email,$company));

为什么sprintf（）在这种情况下不起作用？

4 个答案: