php还是比较常用的，相信大家也都知道它的好处，给大家演示一个php上传文件代码，下面我们来一起看看吧。通过memory_limit变量来指定单个脚本程序可以使用的最大内存容量变量memory_limit的值应当适当大于post_max_size的值max_execution_time，max_execution_time设置了在强制终止脚本前php等待脚本执行完毕的时间，此时间以秒计算。
当脚本进入了一个无限循环状态时此变量非常有用。然而，当存在一个需要很长时间完成的合法活动时（例如上传大型文件），这项功能也会导致操作失败。在这样的情况下必须考虑将此变量值增加，以避免PHP在脚本正在执行某些重要过程的时候将脚本关闭对于linux主机，可能在/etc/httpd/conf.d/access.conf/下面里面还有php.conf文件，这个文件可能会解决一些系统的文件大小限制问题。
PHP上传文件代码
1 | <OL class=dp-xml><LI class=alt><SPAN><STRONG><FONT color=#006699><SPAN class=tag><?</SPAN><SPAN class=tag-name>php</SPAN></FONT></STRONG><SPAN> </SPAN></SPAN><LI class=""><SPAN>$</SPAN><SPAN class=attribute><FONT color=#ff0000>file</FONT></SPAN><SPAN>=$_FILES['userfile1']['tmp_name']; </SPAN></SPAN><LI class=alt><SPAN>$</SPAN><SPAN class=attribute><FONT color=#ff0000>filename</FONT></SPAN><SPAN>=$_FILES['userfile1']['name']; </SPAN></SPAN><LI class=""><SPAN>$</SPAN><SPAN class=attribute><FONT color=#ff0000>x</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>rand</FONT></SPAN><SPAN>(1000,9999); </SPAN></SPAN><LI class=alt><SPAN>$</SPAN><SPAN class=attribute><FONT color=#ff0000>tmp_add_pd_path</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>"./upload/"</FONT></SPAN><SPAN>.$x.".jpg"; </SPAN></SPAN><LI class=""><SPAN>if(!$file||$</SPAN><SPAN class=attribute><FONT color=#ff0000>file</FONT></SPAN><SPAN>=="none"){ </SPAN></SPAN><LI class=alt><SPAN>echo"no"; </SPAN><LI class=""><SPAN>} </SPAN><LI class=alt><SPAN>else{ </SPAN><LI class=""><SPAN>if(move_uploaded_file($file,$tmp_add_pd_path)){ </SPAN><LI class=alt><SPAN>echo$filename; </SPAN><LI class=""><SPAN>$</SPAN><SPAN class=attribute><FONT color=#ff0000>db</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>mysql_connect</FONT></SPAN><SPAN>("localhost","root","wyh7ye"); </SPAN></SPAN><LI class=alt><SPAN>mysql_select_db("test",$db); </SPAN><LI class=""><SPAN>$</SPAN><SPAN class=attribute><FONT color=#ff0000>query</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>"INSERTintoproduct(name)values('$tmp_add_pd_path')"</FONT></SPAN><SPAN>; </SPAN></SPAN><LI class=alt><SPAN>$</SPAN><SPAN class=attribute><FONT color=#ff0000>result</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>mysql_query</FONT></SPAN><SPAN>($query,$db); </SPAN></SPAN><LI class=""><SPAN>$</SPAN><SPAN class=attribute><FONT color=#ff0000>pid</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>"SELECTLAST_INSERT_ID()"</FONT></SPAN><SPAN>; </SPAN></SPAN><LI class=alt><SPAN>$</SPAN><SPAN class=attribute><FONT color=#ff0000>pid_result</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>mysql_query</FONT></SPAN><SPAN>($pid,$db); </SPAN></SPAN><LI class=""><SPAN>$</SPAN><SPAN class=attribute><FONT color=#ff0000>rows</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>mysql_fetch_array</FONT></SPAN><SPAN>($pid_result); </SPAN></SPAN><LI class=alt><SPAN>$</SPAN><SPAN class=attribute><FONT color=#ff0000>tmp_pid</FONT></SPAN><SPAN>=$rows[0]; </SPAN></SPAN><LI class=""><SPAN>$</SPAN><SPAN class=attribute><FONT color=#ff0000>tmp_p_type_sql</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>"INSERTintot_product(typeid,pid)values('$p_type','$tmp_pid')"</FONT></SPAN><SPAN>; </SPAN></SPAN><LI class=alt><SPAN>$</SPAN><SPAN class=attribute><FONT color=#ff0000>result</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>mysql_query</FONT></SPAN><SPAN>($tmp_p_type_sql,$db); </SPAN></SPAN><LI class=""><SPAN>echo"sucess"; </SPAN><LI class=alt><SPAN>} </SPAN><LI class=""><SPAN>else{ </SPAN><LI class=alt><SPAN>echo"false"; </SPAN><LI class=""><SPAN>} </SPAN><LI class=alt><SPAN>} </SPAN><LI class=""><SPAN></SPAN><SPAN class=tag><STRONG><FONT color=#006699>?></FONT></STRONG></SPAN><SPAN> </SPAN></SPAN><LI class=alt><SPAN></SPAN><STRONG><FONT color=#006699><SPAN class=tag><</SPAN><SPAN class=tag-name>br</SPAN><SPAN class=tag>></SPAN><SPAN class=tag><</SPAN><SPAN class=tag-name>br</SPAN><SPAN class=tag>></SPAN><SPAN class=tag><</SPAN><SPAN class=tag-name>br</SPAN><SPAN class=tag>></SPAN><SPAN class=tag><</SPAN><SPAN class=tag-name>br</SPAN><SPAN class=tag>></SPAN></FONT></STRONG><SPAN> </SPAN></SPAN><LI class=""><SPAN></SPAN><STRONG><FONT color=#006699><SPAN class=tag><?</SPAN><SPAN class=tag-name>php</SPAN></FONT></STRONG><SPAN> </SPAN></SPAN><LI class=alt><SPAN>$</SPAN><SPAN class=attribute><FONT color=#ff0000>db</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>mysql_connect</FONT></SPAN><SPAN>("localhost","root","wyh7ye"); </SPAN></SPAN><LI class=""><SPAN>mysql_select_db("test",$db); </SPAN><LI class=alt><SPAN>$</SPAN><SPAN class=attribute><FONT color=#ff0000>query</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>"selectnamefromproduct"</FONT></SPAN><SPAN>; </SPAN></SPAN><LI class=""><SPAN>$</SPAN><SPAN class=attribute><FONT color=#ff0000>result</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>mysql_query</FONT></SPAN><SPAN>($query,$db); </SPAN></SPAN><LI class=alt><SPAN>while($</SPAN><SPAN class=attribute><FONT color=#ff0000>rows</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>mysql_fetch_array</FONT></SPAN><SPAN>($result)){ </SPAN></SPAN><LI class=""><SPAN>echo"</SPAN><SPAN class=tag><STRONG><FONT color=#006699><</FONT></STRONG></SPAN><SPAN class=attribute><FONT color=#ff0000>imgsrc</FONT></SPAN><SPAN class=tag-name><STRONG><FONT color=#006699>imgsrc</FONT></STRONG></SPAN><SPAN>=".$rows['name']."</SPAN><SPAN class=attribute-value><FONT color=#0000ff>width</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>180</FONT></SPAN><SPAN class=attribute><FONT color=#ff0000>180height</FONT></SPAN><SPAN>=180</SPAN><STRONG><FONT color=#006699><SPAN class=tag>></SPAN><SPAN class=tag><</SPAN><SPAN class=tag-name>br</SPAN><SPAN class=tag>></SPAN></FONT></STRONG><SPAN>"; </SPAN></SPAN><LI class=alt><SPAN>} </SPAN><LI class=""><SPAN></SPAN><SPAN class=tag><STRONG><FONT color=#006699>?></FONT></STRONG></SPAN><SPAN> </SPAN></SPAN></LI></OL>
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以上就是详细的PHP上传文件代码，希望对大家有帮助。
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