javascript - jQuery AJAX file upload PHP -


i want implement simple file upload in intranet-page, smallest setup possible.

this html part:

<input id="sortpicture" type="file" name="sortpic" /> <button id="upload">upload</button>

and js jquery script:

$("#upload").on("click", function() {     var file_data = $("#sortpicture").prop("files")[0];        var form_data = new formdata();                       form_data.append("file", file_data)     alert(form_data);                                  $.ajax({         url: "/uploads",         datatype: 'script',         cache: false,         contenttype: false,         processdata: false,         data: form_data,                                  type: 'post',         success: function(){             alert("works");          }     }); });

there folder named "uploads" in root directory of website, change permissions "users" , "iis_users".

when select file file-form , press upload button, first alert returns "[object formdata]". second alert doesn't called , the"uploads" folder empty too!?

can finding out whats wrong?

also next step should be, rename file server side generated name. maybe can give me solution this, too.

you need script runs on server move file uploads directory. jquery ajax method (running in browser) sends form data server, script on server handles upload. here's example using php.

your html fine, update js jquery script this:

$('#upload').on('click', function() {     var file_data = $('#sortpicture').prop('files')[0];        var form_data = new formdata();                       form_data.append('file', file_data);     alert(form_data);                                  $.ajax({                 url: 'upload.php', // point server-side php script                  datatype: 'text',  // expect php script, if                 cache: false,                 contenttype: false,                 processdata: false,                 data: form_data,                                          type: 'post',                 success: function(php_script_response){                     alert(php_script_response); // display response php script, if                 }      }); });

and server-side script, using php in case.

upload.php: php script runs on server , directs file uploads directory:

<?php      if ( 0 < $_files['file']['error'] ) {         echo 'error: ' . $_files['file']['error'] . '<br>';     }     else {         move_uploaded_file($_files['file']['tmp_name'], 'uploads/' . $_files['file']['name']);     }  ?>

also, couple things destination directory:

  1. make sure have correct server path, i.e., starting @ php script location path uploads directory, and
  2. make sure it's writeable.

and little bit php function move_uploaded_file, used in upload.php script:

move_uploaded_file(      // file temporarily stored on server when uploaded     // not change     $_files['file']['tmp_name'],      // want put file , want name     // in case putting in directory called "uploads"     // , giving original filename     'uploads/' . $_files['file']['name'] );

$_files['file']['name'] name of file uploaded. don't have use that. can give file name (server filesystem compatible) want:

move_uploaded_file(     $_files['file']['tmp_name'],     'uploads/my_new_filename.whatever' );

and finally, aware of php upload_max_filesize , post_max_size configuration values, , sure test files not exceed either. here's how check php configuration , how set max filesize , post settings.


Comments

Post a Comment

Popular posts from this blog

angular - Ionic slides - dynamically add slides before and after -

hi i'm using ngfor create set of 3 slides while starting in middle i'm guaranteed able slide left or right on start. when slide right can simple listen reachedend , push slide array i'm looping. but have problem adding slide beginning. if same above , use e.g. array.unshift() or spread add item beginning, view think it's on position 0 , snaps view new slide. the code below work animates slide change index 1. slide = [0,1,2] //example loop slidechanged(event) { if(this.slides.isbeginning()){ this.slide = [this.slide[0]-1, ...this.slide]; this.slides.update(); this.slides.slideto(1) } } <ion-slides [initialslide]="1" (ionslidedidchange)="slidechanged($event)"> <ion-slide *ngfor="let item of slide"> <h1>slide {{item}}</h1> </ion-slide> </ion-slides> any appreciated! you can using ionslidenextend , ionslideprevend events slides . please
Read more

minify - Minimizing css files -

i want know how css files can minimized. currently, using external sites css minifier compress css files. however, after removing whitespaces, comments, etc, file sizes reduced 10-15%. how frameworks bootstrap manage make minimized versions kilobytes. as example, css is: body { background-color: #ff0; } the reduction goes 28 bytes 22 bytes other css files have lot more characters still smaller this. actually minifying code means it's remove thing code white space characters new line characters comments block delimiters it reduces amount of code has transferred on web , speed site load fastly.but unreadable format.
Read more

Add a dynamic header in angular 2 http provider -

i have http interceptor built via tutorial https://scotch.io/@kashyapmukkamala/using-http-interceptor-with-angular2 the problem need have dynamic header changes automatically once changes 'mode' in app. service able tell interceptor change header, or have interceptor pull header (which string)from service each request. able throwing away patch method, call http.patch('new header string') set header string. call in service controls 'mode' setting. wondering if there way interceptor pull recent value service each request or if can add method http provider via interceptor? i've tried call service in interceptor each request returns undefined. because creating new instance of service or copying value before service fired , loaded/changed data. i don't want pass header string every http provider call because defeats purpose of having interceptor, id able set once changes or have provider fetch service before makes request. tl;dr : need add autom
Read more