Changing a text to lower/upper case

kilip

I'm not good at regular expression, but i want to create class to convert text to lower/upper case.

my method is just like this:

$textToFormat = '<strong>This is a strong text</strong>';
echo dx::text($textToFormat)->toUpper('strong')->toString();

//i hope that method will produce output:

<strong>This is a STRONG text</strong>

When i use str_replace('strong','STRONG',$textToFormat) as you guess it produce output: <STRONG>This is a STRONG text</STRONG>';

So the question is how to write code that only make changes for words that is not in tagging format?

I think maybe eregi_replace() or preg_replace() can do that. But i got stack now!

Ali_baba

How about if you can solve it with Javascript? That might be an easier approach if it is not a problem for your current assignment/project.

<input type="text" name="text" onchange="javascript:this.value=this.value.toUpperCase();"  />

kilip

i don't think so. Because i'm gonna use it to formatting html output inside my php code (maybe for formatting several words from my database results)

bradgrafelman

You could try:

$textToFormat = preg_replace('/(?<!<)strong(?!>)/', 'STRONG', $textToFormat);

Note that if you added extra spaces, e.g. < strong >... < /strong > or anything of that nature, it would break the regexp.