我想在JavaScript代码中嵌入一个JavaScript警告框,并希望文本报告变量值。以下代码给出了多行,但不允许我使用变量。
?>
<script type="text/javascript">
alert("Total size of all files too large.\nConsider uploading files in smaller sets.\nYou can append to existing sets.");
document.location.href="SomewhereElse.php";
</script>
<?php
以下代码允许我使用变量但不提供多行。
$Str="Total size cannot be not more than " . ini_get('post_max_size');
echo "<script type='text/javascript'>\n";
echo "alert('" . $Str . "');";
echo "</script>";
当我尝试此代码时,不会出现警告框。
$Str="Unable to load (all of) these files because of their (total) size" .
"\nPlease make the upload set conform to the following parameters";
echo "<script type='text/javascript'>\n";
echo "alert('" . $Str . "');";
echo "</script>";
如果我离开\ n(在Please之前),我会收到警告框,但它不是多行的。我想知道\ n是否解除警报框。无论如何,如何获得带变量的多线警报框?
答案 0 :(得分:1)
尝试这样的事情:
<?php
$max_size = ini_get('post_max_size');
echo '<script>';
echo 'alert("Total size cannot be more than ' . $max_size . '!\nPlease make sure...");';
echo '</script>';
?>