PHP-第19行D:\xammp\htdocs\ch4 image gallery\views\upload.PHP中的数组到字符串转换
我正在尝试创建一个简单的上传图像功能。为此,我有以下两个片段PHP-第19行D:\xammp\htdocs\ch4 image gallery\views\upload.PHP中的数组到字符串转换,php,Php,我正在尝试创建一个简单的上传图像功能。为此,我有以下两个片段 表单以上载新图像 <?php // Form to upload images return "<h1>Upload New Images</h1> <form method='post' action='index.php?page=upload' enctype='multipart/form-data'> <lebel>Find an image to
<?php
// Form to upload images
return "<h1>Upload New Images</h1>
<form method='post' action='index.php?page=upload' enctype='multipart/form-data'>
<lebel>Find an image to upload</lebel>
<input type='file' name='image-data' accept='image/jpeg, image/png, image/gif'>
<input type='submit' name='new-image' value='Upload'>
</form>";
?>
但我得到了以下错误:提前感谢。您尚未将文件数据传递给函数
function upload($data){
$out = "<pre>";
$out .=print_r($data, true);
$out .= "</pre>";
return $out;
}
在函数中接受它并打印它
<?php
// code for uploading images
$fileIsUploaded = isset($_POST['new-image']); // check if file is uploaded via upload-form
if($fileIsUploaded)
upload($_FILES); // calling function 'upload'
else
$output = include_once "views/upload-form.php"; // if not, then run to default
return $output;
//new function to control upload mechanism
function upload($your_files){
$out = "<pre>";
$out .=print_r($your_files, true);
$out .= "</pre>";
return $out;
}
?>
函数上传($data){
$out=“”;
$out.=print\r($data,true);
$out.=”;
退回$out;
}
它的转换错误,因为您使用的是将数组转换为字符串时使用的
PS:首先您必须配置PHP以上载文件/sfile\u uploads=On
因此,在上面的代码中,您没有将数组传递给print\r
方法。请使用以下方法:
(一)
(二)
3) 将全局变量作为参数传递的原因是什么?这个答案不可能是有效的,这种改变没有意义。
upload($_FILES);
function upload($data){
$out = "<pre>";
$out .=print_r($data, true);
$out .= "</pre>";
return $out;
}
<?php
// code for uploading images
$fileIsUploaded = isset($_POST['new-image']); // check if file is uploaded via upload-form
if($fileIsUploaded)
upload($_FILES); // calling function 'upload'
else
$output = include_once "views/upload-form.php"; // if not, then run to default
return $output;
//new function to control upload mechanism
function upload($your_files){
$out = "<pre>";
$out .=print_r($your_files, true);
$out .= "</pre>";
return $out;
}
?>