Bagaimana untuk menukar fail php ke base64

Cara menukar fail PHP kepada base64: Mula-mula buat fail sampel PHP kemudian gunakan kaedah "function fileToBase64($file){...}" untuk menukar fail kepada base64 dan mengeluarkannya.

Persekitaran pengendalian artikel ini: sistem Windows 7, PHP versi 7.1, komputer DELL G3

Cara menukar fail php ke base64?

Fail ke output base64

Skim URI data ditakrifkan dalam RFC2397, tujuannya adalah untuk membenamkan beberapa data kecil terus ke dalam halaman web, oleh itu Tiada lagi memuatkan daripada fail luaran.

Kelebihan: Kurangkan bilangan sambungan http.

Kelemahan: Fail dalam format ini tidak akan dicache oleh penyemak imbas.

Tidak disyorkan untuk mengekod fail "melebihi 20KB", kerana fail yang terlalu besar akan menjadi tidak produktif.

data: Format penggunaan asas URI adalah seperti berikut:

data:[<MIME-type>][;base64|charset=some_charset],<data>

jenis mime ialah jenis mime data terbenam, contohnya, imej png ialah imej/png.

Jika diikuti dengan base64, ini bermakna data berikut dikodkan dalam base64

Skim URI data menyokong jenis berikut:

data:,文本数据
data:text/plain,文本数据
data:text/html,HTML代码
data:text/html;base64,base64编码的HTML代码
data:text/css,CSS代码
data:text/css;base64,base64编码的CSS代码
data:text/javascript,Javascript代码
data:text/javascript;base64,base64编码的Javascript代码
data:image/gif;base64,base64编码的gif图片数据
data:image/png;base64,base64编码的png图片数据
data:image/jpeg;base64,base64编码的jpeg图片数据
data:image/x-icon;base64,base64编码的icon图片数据

Contohnya:

<img src="data:image/jpeg;base64,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" />

demo:

/** 文件转base64输出
* @param  String $file 文件路径
* @return String base64 string
*/
function fileToBase64($file){
    $base64_file = '';
    if(file_exists($file)){
        $mime_type= mime_content_type($file);
        $base64_data = base64_encode(file_get_contents($file));
        $base64_file = 'data:'.$mime_type.';base64,'.$base64_data;
    }
    return $base64_file;
}
 
/** base64转文件输出
* @param  String $base64_data base64数据
* @param  String $file        要保存的文件路径
* @return boolean
*/
function base64ToFile($base64_data, $file){
    if(!$base64_data || !$file){
        return false;
    }
    return file_put_contents($file, base64_decode($base64_data), true);
}

Pembelajaran yang disyorkan: "

Tutorial Video PHP

"

//file to base64
<img src="<?=fileToBase64(&#39;1.jpg&#39;) ?>" />
 
//base64 to file
$file = "test.jpg";
$data = &#39;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&#39;;
 
if(base64ToFile($data, $file)){
    echo &#39;<img src="&#39;.$file.&#39;" />&#39;;
}

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