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php is_uploaded_file() function

Chinese translationRecent Updates：2018-04-19 14:38:07

UK[ˌʌpˈləʊd] US[ˌʌpˈloʊd]

n. Upward (action) load; upload (or upload) data

vt. Upload, upload

Third person singular: uploads Present participle: uploading Past tense: uploaded Past participle: uploaded

php is_uploaded_file() function Video explanation

php is_uploaded_file() function syntax

Function: Determine whether the specified file is uploaded through HTTP POST.

Syntax: is_uploaded_file(file)

Parameters:

Parameter	Description
file	Required. Specifies the documents to be checked.

Explanation: Returns TRUE if the file given by file is uploaded through HTTP POST.

php is_uploaded_file() function example

<?php
$file = "index.txt";
if(is_uploaded_file($file))
{
    echo "该文件是上传的";
}else{
    echo "该文件不是上传的";
}
?>

Click the "Run instance" button to view the online instance

Output:

该文件不是上传的

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