Insert linebreak after 70 chars

Anon

Typical question. I have a long string and want to insert a '\n' after every 70 chars. Ideas?

Anon

You could play around with this

$textcut = substr($uncuttext,0,80)."...";

in this case, you have "..." after 80 chars,

you could try a "\n"

Perhaps this will help.

Anon

are you sure that you need to do this using php? had you tryed to do with html (maybe a table)?

Anon

Yes I have to do it with php cause I want to break a string that is different every time. (an attachment)

Anon

Yes that far I know.. I have an attachment that could be very large and I want to break it every 70 chars. I have to use some kind of loop but I haven't one that works fine yet...

Anon

Is it exactly every 70 chars, or do you prefer to split it on
word boundaries? If the latter, it gets pretty detailed if
you also want to preserve existing breaks. :-)

But basically:

Split() the string on '\n' or '\n+'; you now have an array with one
element for each "line" in the original.

For each element in the array, split() on word space ('[ \t]+').
You now have an array with one element for each "word".

Reassemble the line, inserting a "\n" before the word that
would cause the total length to exceed 70. If a single word
exceeds 70 all by itself, you can search for other places to
break it, such as punctuation marks, but don't use split()
since in this case you don't want to lose the character, but
just insert a newline after it. And of course you need to be
prepared to do an arbitrary split anyway in case you get a
long word containing none of your sub-split characters.

Anon

Try this :

$string="YOUR STRING HERE";

for ($i=0;$i<floor(srlen($sting)/70),$i++) {
$buffer=.substr($string,$i*70,70) . "\n";
}

print $buffer; // <- The result!

I didnt test it, but i think it will work just fine.

-Paulo

Anon

Thanks for your help.

I found a function in php that does exatcly what I was looking for, chunk_split()! =)