I've one sample string as follows :
$feed_status = 'Nice to see you all back again
<img src="http://example.com/file/pic/emoticon/default/smile.png" alt="Smile" title="Smile" title="v_middle" />
<img src="http://example.com/file/pic/emoticon/default/smile.png" alt="Smile" title="Smile" title="v_middle" />
<img src="http://example.com/file/pic/emoticon/default/smile.png" alt="Smile" title="Smile" title="v_middle" />';
For this example I've just added three <img> tags to the string but in real situation this string could contain a zero or more <img> tags.
I want to get names of files present in each of the <img> tag's src attribute and make array of those file names. Then I have to replace these <img> tags by strings from an array titled $emoticon_codes which is created dynamically based on the file name present in <img> tag. This replacement of strings should happen is the same order.
For this I've tried following code. Till the creation of dynamic array titled $emoticon_codes everything works fine but I'm facing with code for replacing the current <img> tags with the strings from the array $emoticon_codes. So can somebody please help me in correcting the mistake I'm making in my code while replacing the <img> tags from the string.
Following is my code :
$doc = new DOMDocument();
$doc->loadHTML($feed_status);
$imageTags = $doc->getElementsByTagName('img');
if(count($imageTags)) {
$emoticon_codes = array();
foreach($imageTags as $tag) {
if (basename($tag->getAttribute('src')) == 'evilgrin.png') {
array_push($emoticon_codes, '\ue404');
}
if (basename($tag->getAttribute('src')) == 'grin.png') {
array_push($emoticon_codes, '\ue415');
}
if (basename($tag->getAttribute('src')) == 'happy.png') {
array_push($emoticon_codes, '\ue057');
}
if (basename($tag->getAttribute('src')) == 'smile.png') {
array_push($emoticon_codes, '\ue056');
}
if (basename($tag->getAttribute('src')) == 'surprised.png') {
array_push($emoticon_codes, '\ue107');
}
if (basename($tag->getAttribute('src')) == 'tongue.png') {
array_push($emoticon_codes, '\ue105');
}
if (basename($tag->getAttribute('src')) == 'unhappy.png') {
array_push($emoticon_codes, '\ue403');
}
if (basename($tag->getAttribute('src')) == 'waii.png') {
array_push($emoticon_codes, '\ue407');
}
if (basename($tag->getAttribute('src')) == 'wink.png') {
array_push($emoticon_codes, '\ue405');
}
}
/*Till here everything works fine. The array $emoticon_codes is also getting generated finely*/
/*Following is the code giving problem to me,*/
$t = 0;
foreach($imageTags as $img) {
$img->parentNode->replaceChild($img, $doc->createTextNode($emoticon_codes[$t]));
$t++;
if ($t > count($emoticon_codes)) {
break;
}
}
}
My desired output string should be like follows after echo $feed_status; :
Nice to see you all back again \ue056 \ue056 \ue056;
If you're trying to change multiple children, you need some regression to make some changes, and I suggest try to map each replacement in an array instead of having multiple if statements. Example:
$feed_status = "Nice to see you all back again <img src=\"http://52.1.47.143/file/pic/emoticon/default/smile.png\" alt=\"Smile\" title=\"Smile\" title=\"v_middle\" /><img src=\"http://52.1.47.143/file/pic/emoticon/default/smile.png\" alt=\"Smile\" title=\"Smile\" title=\"v_middle\" /><img src=\"http://52.1.47.143/file/pic/emoticon/default/smile.png\" alt=\"Smile\" title=\"Smile\" title=\"v_middle\" />";
$doc = new DOMDocument();
@$doc->loadHTML($feed_status, LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD);
$imageTags = $doc->getElementsByTagName('img');
$replacements = array(
'evilgrin.png' => '\ue404',
'grin.png' => '\ue415',
'happy.png' => '\ue057',
'smile.png' => '\ue056',
'surprised.png' => '\ue107',
'tongue.png' => '\ue105',
'unhappy.png' => '\ue403',
'waii.png' => '\ue407',
'wink.png' => '\ue405',
);
// regression
$i = $imageTags->length - 1;
while($i > -1) {
$tag = $imageTags->item($i);
$basename = basename($tag->getAttribute('src'));
if(isset($replacements[$basename])) { // if the file name matches
// make replacements
$r = $replacements[$basename];
$text = $doc->createTextNode($r);
$tag->parentNode->replaceChild($text, $tag);
}
$i--;
}
// append to string container again
$feed_status = '';
foreach($doc->childNodes->item(0)->childNodes as $e) {
$feed_status .= $doc->saveHTML($e);
}
echo $feed_status;