[PHP-DB] Find and replace in a string

[Nikos Gatsis]

Hi list!
I have a sting that contains some occurances of {...} sub-strings, where  is 
some text.
Which is the way to find and replace the {...} with an other of my own.
This sub-strings start with { and end with }.
Thanks

RE: [PHP-DB] Find and replace in a string

[John W. Holmes]

 I have a sting that contains some occurances of {...} sub-strings,
where
  is some text.
 Which is the way to find and replace the {...} with an other of my
own.
 This sub-strings start with { and end with }.

If you know what the text is between { and }, then use

$new_str = str_replace({test},replacement,$old_str);

If you don't, then you can use a regular expression to match and replace
it.

---John Holmes...



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Re: [PHP-DB] Find and replace in a string

[Paul Chvostek]

On Mon, Jan 27, 2003 at 12:57:10AM +0200, Nikos Gatsis wrote:

 Hi list!
 I have a sting that contains some occurances of {...} sub-strings, where  is 
some text.
 Which is the way to find and replace the {...} with an other of my own.
 This sub-strings start with { and end with }.

You could try something with a regular expression like:

$new = ereg('[^{]*{([^}]*)}.*', '\\1', $oldstring);

which will match only the first word inside curly braces, or if
$oldstring contains multiple strings in curly braces, maybe:

$newarray = split('}?[^{]*{', $oldstring . '{');

and then parse the array, and you'll probably want to toss [0], as it
will contain the data before the first left-curly-brace.  This method
needs a trailing left-curly-brace appended to $oldstring because the
regexp relies on it to mark the field.  You could alternately turn this
around as:

$newarray = split('}[^{]*{?', '}' . $oldstring);

which is probably the cleanest way to do this, given the extent to which
you've described the data so far.  Note that split() will work just fine
on multi-line arrays, including fields split over multiple lines.  If
you want to process your data line-by-line, you'd need to wrap it.

The better you can predict the input data, the cleaner the code you can
use to parse it.

Learn the regexps.

-- 
  Paul Chvostek [EMAIL PROTECTED]
  Operations / Abuse / Whatever
  it.canada, hosting and development   http://www.it.ca/


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