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POPHP Array filter regular expressions
 

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    <p>Hi all i have an array shown below</p> <pre><code>Array ( [0] =&gt; http://api.tweetmeme.com/imagebutton.gif?url=http://mashable.com/2010/09/25/trailmeme/ [1] =&gt; http://cdn.mashable.com/wp-content/plugins/wp-digg-this/i/gbuzz-feed.png [2] =&gt; http://mashable.com/wp-content/plugins/wp-digg-this/i/fb.jpg [3] =&gt; http://mashable.com/wp-content/plugins/wp-digg-this/i/diggme.png [4] =&gt; http://ec.mashable.com/wp-content/uploads/2009/01/bizspark2.gif [5] =&gt; http://cdn.mashable.com/wp-content/uploads/2010/09/web.png [6] =&gt; http://mashable.com/wp-content/uploads/2010/09/Screen-shot-2010-09-24-at-10.51.26-PM.png [7] =&gt; http://cdn.mashable.com/wp-content/uploads/2009/02/bizspark.jpg [8] =&gt; http://feedads.g.doubleclick.net/~at/lxx00QTjYBaYojpnpnTa6MXUmh4/0/di [9] =&gt; [10] =&gt; http://feedads.g.doubleclick.net/~at/lxx00QTjYBaYojpnpnTa6MXUmh4/1/di [11] =&gt; [12] =&gt; http://feeds.feedburner.com/~ff/Mashable?i=0N_mvMwPHYk:j5Pmi_N-JQ8:D7DqB2pKExk [13] =&gt; [14] =&gt; http://feeds.feedburner.com/~ff/Mashable?i=0N_mvMwPHYk:j5Pmi_N-JQ8:V_sGLiPBpWU [15] =&gt; [16] =&gt; http://feeds.feedburner.com/~ff/Mashable?i=0N_mvMwPHYk:j5Pmi_N-JQ8:F7zBnMyn0Lo [17] =&gt; [18] =&gt; http://feeds.feedburner.com/~ff/Mashable?d=qj6IDK7rITs [19] =&gt; [20] =&gt; http://feeds.feedburner.com/~ff/Mashable?d=_e0tkf89iUM [21] =&gt; [22] =&gt; http://feeds.feedburner.com/~ff/Mashable?i=0N_mvMwPHYk:j5Pmi_N-JQ8:gIN9vFwOqvQ [23] =&gt; [24] =&gt; http://feeds.feedburner.com/~ff/Mashable?d=yIl2AUoC8zA [25] =&gt; [26] =&gt; http://feeds.feedburner.com/~ff/Mashable?d=P0ZAIrC63Ok [27] =&gt; [28] =&gt; http://feeds.feedburner.com/~ff/Mashable?d=I9og5sOYxJI [29] =&gt; [30] =&gt; http://feeds.feedburner.com/~ff/Mashable?d=CC-BsrAYo0A [31] =&gt; [32] =&gt; http://feeds.feedburner.com/~ff/Mashable?i=0N_mvMwPHYk:j5Pmi_N-JQ8:_cyp7NeR2Rw [33] =&gt; [34] =&gt; http://feeds.feedburner.com/~r/Mashable/~4/0N_mvMwPHYk ) </code></pre> <p>basically, i want to </p> <ol> <li>remove every empty array element</li> <li>remove every array item without extensions <code>".jpg,.png,.gif"</code> in its name; </li> <li>finally remove array items containing keywords such as <code>"digg,fb,tweet,bizspark"</code>.</li> </ol> <hr> <p>have tried ur code and it returns eg hi, ive tried the above code... it returns an array containing the stuff i want out. </p> <p>hi, ive tried the above code... it returns an array containing the stuff i want out. )</p> <pre><code>Array ( [5] =&gt; http://feedads.g.doubleclick.net/~at/W-z_kHMi30EtE1mpxK8NvMmNmeg/0/di [7] =&gt; http://feedads.g.doubleclick.net/~at/W-z_kHMi30EtE1mpxK8NvMmNmeg/1/di [9] =&gt; http://feeds.feedburner.com/~ff/Mashable?i=mEedXAp78pg:339cIishd6A:D7DqB2pKExk [11] =&gt; http://feeds.feedburner.com/~ff/Mashable?i=mEedXAp78pg:339cIishd6A:V_sGLiPBpWU [13] =&gt; http://feeds.feedburner.com/~ff/Mashable?i=mEedXAp78pg:339cIishd6A:F7zBnMyn0Lo [15] =&gt; http://feeds.feedburner.com/~ff/Mashable?d=qj6IDK7rITs [17] =&gt; http://feeds.feedburner.com/~ff/Mashable?d=_e0tkf89iUM [19] =&gt; http://feeds.feedburner.com/~ff/Mashable?i=mEedXAp78pg:339cIishd6A:gIN9vFwOqvQ [21] =&gt; http://feeds.feedburner.com/~ff/Mashable?d=yIl2AUoC8zA [23] =&gt; http://feeds.feedburner.com/~ff/Mashable?d=P0ZAIrC63Ok [25] =&gt; http://feeds.feedburner.com/~ff/Mashable?d=I9og5sOYxJI [27] =&gt; http://feeds.feedburner.com/~ff/Mashable?d=CC-BsrAYo0A [29] =&gt; http://feeds.feedburner.com/~ff/Mashable?i=mEedXAp78pg:339cIishd6A:_cyp7NeR2Rw [31] =&gt; http://feeds.feedburner.com/~r/Mashable/~4/mEedXAp78pg )) </code></pre> <p>)</p> <p>i would like it to return eg from first example</p> <pre><code>[5] =&gt; http://cdn.mashable.com/wp-content/uploads/2010/09/web.png [6] =&gt; http://mashable.com/wp-content/uploads/2010/09/Screen-shot-2010-09-24-at-10.51.26-PM.png </code></pre> <p>any ideas?</p> <hr> <p>Hi GZIp i have modified the code and im getting better results</p> <pre><code>function url_array_filter($url) { static $words = array('digg', 'fb', 'tweet', 'bizspark','feedburner','feedads','CountImage'); static $extens = array('.jpg', '.png', '.gif'); $ret = true; if (!$url) { $ret = false; } elseif (str_replace($words, '', $url) != $url) { $ret = false; } else { $path = parse_url($url, PHP_URL_PATH); if (in_array(substr($path, -4), $extens)) { $ret = false; } } return $ret; } </code></pre> <p>my problem now comes with the output. eg</p> <pre><code>Array ( [0] =&gt; http://cdn.dzone.com/images/thumbs/120x90/491551.jpg' style='width:120;height:90;float:left;vertical-align:top;border:1px solid ) Array ( [0] =&gt; http://cdn.dzone.com/images/thumbs/120x90/490913.jpg' style='width:120;height:90;float:left;vertical-align:top;border:1px solid ) </code></pre> <p>i want the url only. i think i have the problem with extracting urls from original content. lemme post a link to the origial question and what im doing.</p> <p><a href="https://stackoverflow.com/questions/3793768/rss-feeds-and-image-extraction-indepth">RSS Feeds and image extraction indepth</a></p> <p>i simply want the url. i think from that link.... getImagesUrl() maybe messing up. im going to try and use parse_url to bring back the correct url. lemme know if im on right track. im very close to manage pulling image urls from rss feeds parsed with magpie</p> <hr> <p>Ok GZip, this is the modification and addition ive added to ur code... 95% works!! great. although i do receive some funny results im posting below</p> <pre><code>function url_array_filter($url) { static $words = array('digg', 'fb', 'tweet', 'bizspark','feedburner','feedads','CountImage','fuelbrand'); static $extens = array('.jpg', '.png', '.gif'); $ret = true; if (!$url) { $ret = false; } elseif (str_replace($words, '', $url) != $url) { $ret = false; } else { $path = parse_url($url, PHP_URL_PATH); if (in_array(substr($path, -4), $extens)) { $ret = false; } } return $ret; } function cleanURL($a_url) { $ret=array(); foreach ($a_url as $c) { $a=parse_url($c, PHP_URL_SCHEME).'://'.parse_url($c, PHP_URL_HOST).parse_url($c, PHP_URL_PATH); $a=explode("'",$a); $ret[]=$a[0]; } return $ret; } </code></pre> <p>example usage. $this->getImagesUrl($c); below returns results in first question.</p> <pre><code> foreach($content as $c) { // get the images in content $arr = $this-&gt;getImagesUrl($c); $arr = array_filter($arr, 'url_array_filter'); } $ret=cleanURL($arr); if (count($ret)&gt;0) { print_r($ret); echo "&lt;br/&gt;&lt;br/&gt;"; } </code></pre> <p>up to this point almost everything works great but i keep getting some bad results like</p> <pre><code>Array ( [0] =&gt; http://cdn.mashable.com/wp-content/uploads/2010/02/ipad-side- ) Array ( [0] =&gt; http://mrg.bz/FZtr2k [1] =&gt; http://mrg.bz/IDkx4w ) </code></pre> <p>people we almost there... any ideas</p>
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    1. USSir Lojik
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    1. COWhat does your code look like so far?
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      1. USIgnacio Vazquez-Abrams
    2. COi have no idea about using regular expressions... so cant go any further. all i can probably do at this moment is remove empty array elements
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      1. USSir Lojik
    3. COYou do not need regular expressions. Be creative with [stristr](http://nl2.php.net/manual/en/function.stristr.php) and comparison functions.
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      1. USLekensteyn
 

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