php如何解决无法上传大于8M的文件问题

复制代码 代码如下:

<form enctype="multipart/form-data" action="add_file.php" method="post">
<fieldset><legend>Fill out the form to upload a file:</legend>
<?php // Create the inputs.
for ($i = 0; $i < $counter; $i++) {
echo '<b>File:</b> <input type="file" />

<b>Description:</b> <textarea cols="40" rows="5"></textarea>


';
}
?>
</fieldset>
<input type="hidden" value="TRUE" />
[align=center]<input type="submit" value="Submit" />[/align]
</form>