php将图片以二进制存到mysql中的方法
很奇怪,直接用file_get_contents存入数据库成功后,结果读取的时候图片不能显示,后来解决方法是什么!!是用了下base64编码。。。不多说直接上图。 1.这是upload.php ? php include ('./conn.php' ); if ( $_POST ['submit' ]) { if ( $_FILES ['image']['
很奇怪,直接用file_get_contents存入数据库成功后,结果读取的时候图片不能显示,后来解决方法是什么!!是用了下base64编码。。。不多说直接上图。
1.这是upload.php
<span>php </span><span>include</span>('./conn.php'<span>); </span><span>if</span> (<span>$_POST</span>['submit'<span>]) { </span><span>if</span> (<span>$_FILES</span>['image']['size'<span>]) { </span><span>$names</span> = <span>$_FILES</span>['image']['name'<span>]; </span><span>$arr</span> = <span>explode</span>('.', <span>$names</span><span>); </span><span>$name</span> = <span>$arr</span>[0]; <span>//</span><span>图片名称</span> <span>$date</span> = <span>date</span>('Y-m-d H:i:s'); <span>//</span><span>上传日期</span> <span>$fp</span> = <span>fopen</span>(<span>$_FILES</span>['image']['tmp_name'], 'rb'<span>); </span><span>$type</span> = <span>$_FILES</span>['image']['type'<span>]; </span><span>$file_uploads</span> = <span>file_get_contents</span>(<span>$_FILES</span>['image']['tmp_name'<span>]); </span><span>$file_uploads</span> = <span>base64_encode</span>(<span>$file_uploads</span><span>); </span><span>if</span> (!<span>$fp</span><span>) { showInfo(</span>'读取图片失败!'<span>); } </span><span>else</span><span> { </span><span>if</span> (<span>$image</span><span>) { </span><span>$q</span> = "insert into image (name, pic, type, date) values ('<span>$name</span>','<span>$file_uploads</span>','<span>$type</span>','<span>$date</span>')"<span>; </span><span>$result</span> = <span>mysql_query</span>(<span>$q</span><span>); </span><span>if</span> (<span>$result</span><span>) { showInfo(</span>'上传成功!'<span>); } </span><span>else</span><span> { showInfo(</span>'上传失败!'<span>); } </span><span>mysql_close</span>(<span>$link</span><span>); } </span><span>else</span><span> { showInfo(</span>'请选择要上传的文件!'<span>); } } } </span><span>else</span><span> { showInfo(</span>'请选择要上传的文件!'<span>); } } </span><span>function</span> showInfo(<span>$info</span><span>) { </span><span>echo</span> "<meta http-equiv='\"Content-Type\"' content='\"text/html;' charset='utf-8\"'>"<span>; </span><span>echo</span> "<meta http-equiv="refresh" content="1;url=show.php">"<span>; </span><span>echo</span> ""<span>; </span><span>echo</span> "" . <span>$info</span> . "……"<span>; </span><span>echo</span> ""<span>; } </span>?>
2.image.php用于从数据库中读取图片
<span>php </span><span>include</span>('./conn.php'<span>); </span><span>$id</span> = <span>$_GET</span>['id'<span>]; </span><span>$sql</span> = "select * from image where id='<span>$id</span>'"<span>; </span><span>$result</span> = <span>mysql_query</span>(<span>$sql</span><span>); </span><span>if</span> (!<span>$result</span><span>) </span><span>die</span>("读取图片失败!"<span>); </span><span>$num</span> = <span>mysql_num_rows</span>(<span>$result</span><span>); </span><span>if</span> (<span>$num</span> ) <span>die</span>("暂无图片"<span>); </span><span>$obj</span> = <span>mysql_fetch_object</span>(<span>$result</span><span>); </span><span>$data</span> = <span>base64_decode</span>(<span>$obj</span>->pic); <span>//</span><span>Base64解码</span> <span>$type</span> = <span>mysql_result</span>(<span>$result</span>, 0, 'type'<span>); </span><span>header</span>("Content-type: <span>$type</span>"<span>); </span><span>echo</span> <span>$data</span><span>; </span>?>
3.show.php显示和上传图片
<span>php </span><span>include</span>('./conn.php'<span>); </span>?> span>PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <meta http-equive="Content-Type" content="text/html" charset="utf-8"> <title> </title>
![]()
php
echo $row['name'];
?>
php
echo $row['date'];
?>
|
最后运行结果:
总结:网上的都是坑爹么?谁有其他不用base64编码的方法能否告知?

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