I am trying to insert the variable x to an existing html-tag.
The image-tag <img id="Img" src="IMG/.jpg"/>
should get the variable x at the end of its id and its src:
<script>
var images = <?php echo (json_encode($files));?>
for(x = 1;x < $images.length-2;x++){
// <img id="Img"+x src="IMG/"+x+.jpg"/>
}
</script>
this here should work
<script>
var images = <?php echo (json_encode($files));?>;
for(x = 1;x < images.length-2;i++){
document.write('<img id="Img"'+ x + ' src="IMG/"' + x + '.jpg"/>');
}
</script>
im not sure but you may have to add some ' or " befor and after the php code
and i agree with @sublimeobject's comment
First you want to get the actual id
and src
:
var path = document.getElementsByTagName("img")[0]; // That looks for all img-tags in your document and returns an array with all of them. I took the first one (number 0 in the array) - if it is not the first image, change that number.
var imgId = path.id;
var imgSrc = path.src;
You wanted to add the variable x to both of them:
var newId = imgId + x;
var newSrc = imgSrc + x;
Then you can write the new id
and the new src
in you image tag:
path.setAttribute("id", newId);
path.setAttribute("src", newSrc);
So your whole code should look like
<script>
var images = <?php echo (json_encode($files));?>
for(x = 1;x < $images.length-2;x++){
//read the id and src
var path = document.getElementsByTagName("img")[0];
var imgId = path.id;
var imgSrc = path.src;
//change them
var newId = imgId + x;
var newSrc = imgSrc + x;
//and write the new id and new src in the image-tag
path.setAttribute("id", newId);
path.setAttribute("src", newSrc);
}
</script>
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