te')); return $arr; } /* 遍历用户所有主题 * @param $uid 用户ID * @param int $page 页数 * @param int $pagesize 每页记录条数 * @param bool $desc 排序方式 TRUE降序 FALSE升序 * @param string $key 返回的数组用那一列的值作为 key * @param array $col 查询哪些列 */ function thread_tid_find_by_uid($uid, $page = 1, $pagesize = 1000, $desc = TRUE, $key = 'tid', $col = array()) { if (empty($uid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('uid' => $uid), array('tid' => $orderby), $page, $pagesize, $key, $col); return $arr; } // 遍历栏目下tid 支持数组 $fid = array(1,2,3) function thread_tid_find_by_fid($fid, $page = 1, $pagesize = 1000, $desc = TRUE) { if (empty($fid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('fid' => $fid), array('tid' => $orderby), $page, $pagesize, 'tid', array('tid', 'verify_date')); return $arr; } function thread_tid_delete($tid) { if (empty($tid)) return FALSE; $r = thread_tid__delete(array('tid' => $tid)); return $r; } function thread_tid_count() { $n = thread_tid__count(); return $n; } // 统计用户主题数 大数量下严谨使用非主键统计 function thread_uid_count($uid) { $n = thread_tid__count(array('uid' => $uid)); return $n; } // 统计栏目主题数 大数量下严谨使用非主键统计 function thread_fid_count($fid) { $n = thread_tid__count(array('fid' => $fid)); return $n; } ?>javascript - Get file name of image before upload - JQuery - Stack Overflow
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javascript - Get file name of image before upload - JQuery - Stack Overflow

programmeradmin3浏览0评论

I have a form to upload image with:

<div class="col-sm-4">
 <input id="file_input" type="file" style="visibility: hidden; width: 0; height: 0" name="image[photo_new]" accept="image/*">
</div>
<div class="col-lg-8">
  <div class="form-group row">
    <label class="col-sm-3 control-label" for="title">
      <label for="image_title">Title</label>
    </label>
    <div class="col-sm-9">
      <input id="title" class="form-control" type="text" placeholder="Title" name="image[title]" maxlength="200">
    </div>
  </div>
</div>

I want when users click to #input_file area to choose image, then the after choosing file, the file name will display immediately in #title field. For example name.png should be name. I want to use JQuery to do this function but don't know how, any advises? Thank in advance.

I have a form to upload image with:

<div class="col-sm-4">
 <input id="file_input" type="file" style="visibility: hidden; width: 0; height: 0" name="image[photo_new]" accept="image/*">
</div>
<div class="col-lg-8">
  <div class="form-group row">
    <label class="col-sm-3 control-label" for="title">
      <label for="image_title">Title</label>
    </label>
    <div class="col-sm-9">
      <input id="title" class="form-control" type="text" placeholder="Title" name="image[title]" maxlength="200">
    </div>
  </div>
</div>

I want when users click to #input_file area to choose image, then the after choosing file, the file name will display immediately in #title field. For example name.png should be name. I want to use JQuery to do this function but don't know how, any advises? Thank in advance.

Share Improve this question edited Apr 21, 2016 at 4:05 DinhNgocHien asked Apr 21, 2016 at 3:41 DinhNgocHienDinhNgocHien 7173 gold badges18 silver badges36 bronze badges 1
  • Please show us the mark up/HTML. – rmondesilva Commented Apr 21, 2016 at 3:57
Add a ment  | 

4 Answers 4

Reset to default 9

You can use this.value to get the file value in a change event handler and then extract the name like

$('#file_input').change(function() {
  //$('#title').val(this.value ? this.value.match(/([\w-_]+)(?=\.)/)[0] : '');
  $('#title').val(this.files && this.files.length ? this.files[0].name.split('.')[0] : '');

})
<script src="https://ajax.googleapis./ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input id="file_input" type="file" />
<input id="title" />

You can attach an event after the user chooses an image like this:

$(document).ready(function() {
    $('#image').on('change', function(event) {
        // and you can get the name of the image like this:
        console.log(event.target.files[0].name);
    });
});

If the html is like this:

<input type="file" id="image">

Use this sample code to show file name :

<input type="file" name="file" id="file" />
<button  id="btn">Submit</button>
<div id="fname"></div>

 $(function(){
    $('#btn').on('click',function(){
    var name = $('#file').val().split('\\').pop();
    name=name.split('.')[0];
    $('#fname').html(name);
  });
})();

Here is Demo on jsfiddle

You can have name, size and type details of selected file using below code. have a look.

<form enctype="multipart/form-data">
<input id="file" type="file" />
<input type="submit" value="Upload" />
</form>
<script
src="https://ajax.googleapis./ajax/libs/jquery/1.12.0/jquery.min.js"></script>
<script>
$('#file').change(function(){
 var file = this.files[0];
 name = file.name;
 size = file.size;
 type = file.type;
 //your validation
 });
</script>
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