Compress / compress image after upload

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Compress / compress image after upload

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#1 by (1 votes)

3

I need help perfecting a script .. In general I want to add to this script:

if(isset($_POST['action']) && $_POST['action'] == 'get_photo') {
        if(is_array($_FILES)) {
            if(is_uploaded_file($_FILES['userImage']['tmp_name'])) {
                $file_name = $_FILES['userImage']['name'];
                $sourcePath = $_FILES['userImage']['tmp_name'];
                preg_match("/\.(gif|bmp|png|jpg|jpeg){1}$/i", $file_name, $ext);

                // Gera um nome único para a imagem
                $nome_imagem = md5(uniqid(time())) . "." . $ext[1];
                // Caminho de onde ficará a imagem
                $desired_dir="../image/posts/";
                $caminho_imagem = $desired_dir.$nome_imagem;

                if(move_uploaded_file($sourcePath,$caminho_imagem)) {
                    echo '<img src="/image/posts/'.$nome_imagem.'" width="100px" height="100px" />';
                }
            }
        }
    }

A system or way to reduce the quality of the image, since I'm working on a website like Instagram and I need the images to be quite light, with Facebook does. Capture the image and convert it to JPG and reduce the size of the image to MB for KB

>

Thanks in advance for all ...

php

asked by anonymous 26.02.2016 / 14:11

1 answer

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score 1 · Accepted Answer

See this script, it converts images to jpeg.

The imagemOriginal parameter is the path where the original image is, the imagemFinal parameter is the final name after the conversion, and the qualidade parameter is an integer value from 0 to 100, where 0 is low quality and 100 maximum quality, the closer to 100, the "heavier" the image will be.

function converterImagem($imagemOriginal, $imagemFinal, $qualidade) {
    // jpg, png, gif or bmp
    $exploded = explode('.',$imagemOriginal);
    $ext = $exploded[count($exploded) - 1]; 

    if (preg_match('/jpg|jpeg/i',$ext))
        $imagemTmp=imagecreatefromjpeg($imagemOriginal);
    else if (preg_match('/png/i',$ext))
        $imagemTmp=imagecreatefrompng($imagemOriginal);
    else if (preg_match('/gif/i',$ext))
        $imagemTmp=imagecreatefromgif($imagemOriginal);
    else if (preg_match('/bmp/i',$ext))
        $imagemTmp=imagecreatefrombmp($imagemOriginal);
    else
        return 0;

   // O parâmetro "qualidade" é um valor de 0 (baixa) até 100 (alta)
   imagejpeg($imagemTmp, $imagemFinal, $qualidade);
   imagedestroy($imagemTmp);

   return 1;
}