getimagesize

What kind of file types does PHP getimagesize() return?

由 坚强是说给别人听的谎言 提交于 2019-12-03 11:37:18
Does anyone know all the possible results for the 3rd value returned from PHP's getimagesize() function? Example this code below will return: $imageinfo['2'] = 2; for a jpg image, $imageinfo['2'] = 3; for a png image, $imageinfo['2'] = 0; for a gif image. The numbers might not be correct above but you get the idea. I can't find on php.net or anywhere else a list of all possible results for the 3rd value. $imageinfo = getimagesize($imageurl); $image_type = $imageinfo['2']; Execute this: print_r(get_defined_constants()); And then look for constants prefixed with IMAGETYPE_. On my PHP 5.3

Handle error when getimagesize can't find a file

由 十年热恋 提交于 2019-12-03 01:34:57
when I'm trying to getimagesize($img) and the image doesn't exist, I get an error. I don't want to first check whether the file exists, just handle the error. I'm not sure how try catch works, but I want to do something like: try: getimagesize($img) $works = true catch: $works = flase Pascal MARTIN Like you said, if used on a non-existing file, getimagesize generates a warning : This code : if ($data = getimagesize('not-existing.png')) { echo "OK"; } else { echo "NOT OK"; } will get you a Warning: getimagesize(not-existing.png) [function.getimagesize]: failed to open stream: No such file or

Warning: getimagesize() [function.getimagesize]: Filename cannot be empty warning message?

由 喜你入骨 提交于 2019-11-28 11:02:44
问题 Up until recently I've been using some PHP to upload photos to a site. But suddenly it's started triggering all sorts of error messages. I use a form that on action runs the following code: $uploaddir = "../../user_content/photo/"; $allowed_ext = array("jpeg", "jpg", "gif", "png"); if(isset($_POST["submit"])) { $file_temp = $_FILES['file']['tmp_name']; $info = getimagesize($file_temp); } else { print "File not sent to server succesfully!"; exit; } The file upload part of the form has the

PHP getimagesize() not working

由 梦想与她 提交于 2019-11-28 00:29:48
<?php $URL="http://cor-forum.de/forum/images/smilies/zombie.png"; list($width, $height) = getimagesize($URL); echo 'width: '.$width.'<br> height: '.$height; ?> This results in the following output: width: height: EDIT and I get the following warning: Warning: getimagesize( http://cor-forum.de/forum/images/smilies/zombie.png ): failed to open stream: HTTP request failed! HTTP/1.1 403 Forbidden in /home/webpages/lima-city/regnum-forum/html/DATEIEN/scheisstest.php on line 6 --whereas it displays the right values if I use another picture like $URL='http://getfavicon.appspot.com/http://google.com

GetImageSize() not returning FALSE when it should

由 情到浓时终转凉″ 提交于 2019-11-26 18:30:29
问题 Working on a little upload script here. I'm trying to check if the uploaded image really is an image and not just a renamed PHP file. When the script is posted I can print the array with foreach ($_FILES['images']['name'] as $key => $value){ print_r(getimagesize($_FILES['images']['tmp_name'][$key])); That works just fine, so it won't return false. But even if I upload a file that is not an image, it won't give false. It just returns nothing at all, and the rest of my script just processes the

php get all the images from url which width and height >=200 more quicker

由 淺唱寂寞╮ 提交于 2019-11-26 14:42:42
I am simular some function like http://pinterest.com add a pin How to get all the images from url which width and height >=200 more quicker? pinterest.com will finish the whole process nearly 10 seconds, but I need 48.64 seconds. require dirname(__FILE__) . '/simple_html_dom.php'; $url = 'http://www.huffingtonpost.com/'; $html = file_get_html($url); if($html->find('img')){ foreach($html->find('img') as $element) { $size = @getimagesize($element->src); if($size[0]>=200&&$size[1]>=200){ echo $element; } } }// cost 48.64 seconds I think what you use do is run curl requests in parallel using curl

Super fast getimagesize in php

由 梦想的初衷 提交于 2019-11-26 12:43:25
I am trying to get image size (image dimensions, width and height) of hundreds of remote images and getimagesize is way too slow. I have done some reading and found out the quickest way would be to use file_get_contents to read a certain amount of bytes from the images and examining the size within the binary data. Anyone attempted this before? How would I examine different formats? Anyone has seen any library for this? function ranger($url){ $headers = array( "Range: bytes=0-32768" ); $curl = curl_init($url); curl_setopt($curl, CURLOPT_HTTPHEADER, $headers); curl_setopt($curl, CURLOPT

php get all the images from url which width and height >=200 more quicker

由 一世执手 提交于 2019-11-26 03:59:02
问题 I am simular some function like http://pinterest.com add a pin How to get all the images from url which width and height >=200 more quicker? pinterest.com will finish the whole process nearly 10 seconds, but I need 48.64 seconds. require dirname(__FILE__) . \'/simple_html_dom.php\'; $url = \'http://www.huffingtonpost.com/\'; $html = file_get_html($url); if($html->find(\'img\')){ foreach($html->find(\'img\') as $element) { $size = @getimagesize($element->src); if($size[0]>=200&&$size[1]>=200){

PHP check if file is an image [duplicate]

由 风格不统一 提交于 2019-11-26 03:57:00
问题 This question already has an answer here: How to check uploaded file type in PHP 9 answers Is there a way to make sure a received file is an image in PHP ? Testing for the extension doesn\'t sound very secure to me as you could upload a script and change its extension to whatever you want. I\'ve tried to use getimagesize too, but there might be something more suited for that particular problem. 回答1: Native way to get the mimetype: For PHP < 5.3 use mime_content_type() For PHP >= 5.3 use finfo

Super fast getimagesize in php

由 坚强是说给别人听的谎言 提交于 2019-11-26 03:05:36
问题 I am trying to get image size (image dimensions, width and height) of hundreds of remote images and getimagesize is way too slow. I have done some reading and found out the quickest way would be to use file_get_contents to read a certain amount of bytes from the images and examining the size within the binary data. Anyone attempted this before? How would I examine different formats? Anyone has seen any library for this? 回答1: function ranger($url){ $headers = array( "Range: bytes=0-32768" );
订阅 getimagesize