php - A div fails to show html when its innerHTML is changed -


my div set show line of text , successfully. later in code set innerhtml of div show 15 lines of text , shows 1st line.

i thought block elements divs automatically 'grow' based on content -- , note i'm not using css affect div in 'hiding' overflow. note put 3-pixel-wide solid purple border around div visually assess size change 'innerhtml' 1 line of text 15 lines of text.

<div class="rbadslinksdiv" id="adlinksarea" style="border: 3px solid purple;">   <br />this 1 line of text replaced 15 lines of text.... </div>

when web page first appears, correctly shows 1 line of text in div:

this 1 line of text replaced 15 lines of text....

here css:

 .rbadslinksdiv  {        margin-top: 5px;  }

here php code generates javascript fill div 15 lines of new text:

 $html = <<<heredoc   "<br /><br /><b>1) hey ad links?</b><br /><br />"   "<br /><br /><b>2) hey ad links?</b><br /><br />"   "<br /><br /><b>3) hey ad links?</b><br /><br />"   "<br /><br /><b>4) hey ad links?</b><br /><br />"   "<br /><br /><b>5) hey ad links?</b><br /><br />"   "<br /><br /><b>6) hey ad links?</b><br /><br />"   "<br /><br /><b>7) hey ad links?</b><br /><br />"   "<br /><br /><b>8) hey ad links?</b><br /><br />"   "<br /><br /><b>9) hey ad links?</b><br /><br />"   "<br /><br /><b>10) hey ad links?</b><br /><br />"   "<br /><br /><b>11) hey ad links?</b><br /><br />"   "<br /><br /><b>12) hey ad links?</b><br /><br />"   "<br /><br /><b>13) hey ad links?</b><br /><br />"   "<br /><br /><b>14) hey ad links?</b><br /><br />"   "<br /><br /><b>15) hey ad links?</b><br /><br />"  heredoc;   $outstr = "document.getelementbyid('adlinksarea').innerhtml = $html";  echo $outstr;

to make sure 'outstr' correct, display contents of in iframe on web page , yes indeed, 15 lines of html code there.

i expected see 15 lines above see in div is:

1) hey ad links?

and other 14 lines missing.

i thought when update 'innerhtml' of div more content div should automatically expand show -- incorrect assumption on part? , if so, need div grows in size based on number of lines of text, not 15 lines?

one of things tried in attempting figure out instead of 1 line of text, div has 5 lines of text when first appears on page:

<div class="rbadslinksdiv" id="adlinksarea" style="border: 3px solid purple;">   <br />this 1 line of text replaced 15 lines of text....   <br />this 1 line of text replaced 15 lines of text....   <br />this 1 line of text replaced 15 lines of text....   <br />this 1 line of text replaced 15 lines of text....   <br />this 1 line of text replaced 15 lines of text.... </div>

the above shows correctly on web page -- in fact see 5 lines of above text on web page when page first loads.

 1 line of text replaced 15 lines of text....  1 line of text replaced 15 lines of text....  1 line of text replaced 15 lines of text....  1 line of text replaced 15 lines of text....  1 line of text replaced 15 lines of text....

then change 'innerhtml' of div display 15 lines of text above -- , div shrinks , shows me 1 line of new text:

1) hey ad links?

so other 14 lines not visible. i'm missing basic here?

maybe need add plus onto end of each line 

  "<br /><br /><b>1) hey ad links?</b><br /><br />" +   "<br /><br /><b>2) hey ad links?</b><br /><br />" +    "<br /><br /><b>1) hey ad links?</b><br /><br />" +    "<br /><br /><b>2) hey ad links?</b><br /><br />"

that's reason can think of when it's adding 1 line.

note javascript use + not php

if not problem need show output php of innerhtml


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