String manipulation

[alvin567]

How do I change 2011-011 to LPK-2k11-011???

[requinix]

1. Start with the string "LPK-2k".

2. Grab the first four digits.

3. Subtract 2000.

4. Append to the string.

5. Append a "-".

6. Grab the last three digits.

7. Append to the string.

[tarunpahuja]

How do I change 2011-011 to LPK-2k11-011

 

$count = 1;

str_ireplace('20','LPK-2k','2011-011',$count)

 

LPK-2k11-011

[alvin567]

Ok,there is a format issues,

for example

 

1994 I can to change to

if i have LPI 94-038

 

2012-011 I want to change

 

LPI 2K11-011

 

lets make it more versatile!

[alvin567]

How any ideas?

[tarunpahuja]

Would you please like to tell what are you trying to do and make your scenario more understandable?

[.josh]

$string = "1969-011";
$string = preg_replace_callback('~^[0-9]{2}~',create_function('$m','return "LPI ".(($m[0]==20)?"2K":"");'),$string);

[alvin567]

Can you make it more readable?

[alvin567]

To give more details:

http://answers.yahoo.com/question/index?qid=20120604183959AAo9Qhk

[.josh]

1) I don't see how that link provided any more details that what you already posted here...

2) Does the code I posted not do what you asked?

 

Here is a breakdown of what it does:

 

$string = "1811-011";
$string = preg_replace_callback( // function to match and replace a value with a LPI prefix and possible 2k if it is a 2k date
  '~^[0-9]{2}~',                 // match the first 2 digits in the string (example 19 in 1969)
  create_function(               // create anonymous function to handle the matched value
    '$m',                        // passing the matched value to the anonymous function
    'return                      // return the following:
      "LPI ".                    // the LPI prefix you want to add
      (($m[0]==20)?              // is the matched 2 digits 20?
        "2K":                    // if yes, add the 2K prefix 
        "");'                    // if no, nothing more to add
  ),                             // end of create_function call
  $string                        // the original string value to perform the regex on
);                               // end of preg_replace_callback call

[alvin567]

thats great!!