[SOLVED] "rtrim" specific length from sentence

[[email protected]]

<?php
$a = //some int value
$sentence = "This is the string. Need to rtrim $a number of characters from right of $sentence";
$result_string = rtim($sentence, $a);

//can we do this ??
?>

 

[trq]

Take a look at substr.

[Alex]

Do you want to preform rtrim on characters on the right of the sentence or do you want to completely remove them?

[[email protected]]

Do you want to preform rtrim on characters on the right of the sentence or do you want to completely remove them?

 

It would be better to replace those $a(int) number of characters at the end with "...Read More"

 

or

 

worst case remove them.

[[email protected]]

I was able to remove

 

$result = substr($sentence, 0, -$a);

 

Any way of adding "read more" at the end ??

[Alex]

Then you should go with substr() as Thorpe said.

 

ex

echo substr($sentence, 0, $a) . ' Read more...';

 

The problem with that is it will cut in the middle of words. Alternatively to get around this you can use this:

 

echo current(explode("\n", wordwrap($sentence, $a))) . ' Read more...';

 

wordwrap()

[[email protected]]

ex

 

echo current(explode("\n", wordwrap($sentence, $a))) . ' Read more...';

 

 

The problem with this is wordwrap's $a characters from left. But we need to remove from right. Any solution ??

[trq]

Its always a good idea to look at the examples posted in the manual.

 

Like this one for instance.

[Alex]

I can't speak for your specific case, but it seems more logical that you limit the amount of characters starting from the left. If you have strings that vary in length then you'll have different results. Wouldn't you want to have the strings with the 'Read more..' be the same length all the time? At least that's normally how it is.

[[email protected]]

I can't speak for your specific case, but it seems more logical that you limit the amount of characters starting from the left....

 

I know what you are saying, so I reversed my logic

 

//say 100 is total length
$a= //some int length
$b= 100 - $a

$result = current(explode("\n", wordwrap($sentence, $b))) . ' Read more...';

//Now I have $sentence[] as array...how do I do now...

[[email protected]]

$topic_bit_length = strlen($dataArray1['topic'][$y]."::".$bit);
				$a = $topic_bit_length + 10;
				$b = 100 - $a;
				$sent_shrink = current(explode("\n", wordwrap($dataArray2['sent'][$z], $b))).' Read more';