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? ??? ?? PHP ???? ???? ?? ??? ???? ???? PHP? ??? ?????? ??? ??? ? ?????

???? ?? ??? ???? ???? PHP? ??? ?????? ??? ??? ? ?????

Nov 02, 2024 pm 07:03 PM

How Can You Determine if a User Has Uploaded a File in PHP, Even if the Upload is Optional?

PHP?? ??? ?? ??? ??

???? ?? ??? ???? ???? PHP?? ??? ?????? ??? ??? ? ????? ?

???:

1. is_uploaded_file() ??

??? ??????? ????? ??? ?????.

<code class="php">if(!file_exists($_FILES['myfile']['tmp_name']) || !is_uploaded_file($_FILES['myfile']['tmp_name'])) {
    echo 'No upload';
}</code>

is_uploaded_file()? ??? HTTP POST? ?? ??????? ???? ???? ???? ?????.

2. FileUpload() ???? ?? FileUpload ???

FileUpload ?????? fileUploaded() ???? ??? ? ????.

<code class="php">public function fileUploaded()
{
    if(empty($_FILES)) {
        return false;       
    } 
    $this->file = $_FILES[$this->formField];
    if(!file_exists($this->file['tmp_name']) || !is_uploaded_file($this->file['tmp_name'])){
        $this->errors['FileNotExists'] = true;
        return false;
    }   
    return true;
}</code>

? ???? POST? ??? ??? ?????. ??? ???? ??? ????? ?? ?? ???? false? ?????. ??? ??? ?? ?? ???? ???? ??? ????? ???? ?? true? ?????.

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Undresser.AI Undress

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AI Clothes Remover

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???? ?? ???? ??? AI ?????.

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