php将image转换为base64编码

<code><span><?php </span><span>$file</span> = <span>"example.jpg"</span>;
<span>$type</span> = getimagesize( <span>$file</span> ); <span>//取得图片的大小，类型等</span><span>$file_content</span> = base64_encode( file_get_contents( <span>$file</span> ) );
<span>switch</span> ( <span>$type</span>[<span>2</span>] ) { <span>//判读图片类型</span><span>case</span><span>1</span>:
        <span>$img_type</span> = <span>"gif"</span>;
        <span>break</span>;
    <span>case</span><span>2</span>:
        <span>$img_type</span> = <span>"jpg"</span>;
        <span>break</span>;
    <span>case</span><span>3</span>:
        <span>$img_type</span> = <span>"png"</span>;
        <span>break</span>;
}
<span>$img</span> = <span>'data:image/'</span> . <span>$img_type</span> . <span>';base64,'</span> . <span>$file_content</span>; <span>//合成图片的base64编码</span><span>echo</span><span>'<img  src="'</span>%20.%20<span>%24img</span>%20.%20<span>'" alt="php将image转换为base64编码" >'</span>;</span></code>

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