Split a row by group [ALPHA] [DIGIT] [ALPHA]

Question

I am trying to delete a string grouped by type (only ALPHA or DIGIT), without any other character.

I work in PHP and want to use REGEX.

I need to convert an input string of type ES-3810 / 24MX "to an array, for example [ES] [3810] [24] [MX] , and an input string of type" CISCO1538M "to an array such as [CISCO] [1538] [M] .

The sequence of input files may be indifferent to DIGITS or ALPHA.

Separators can be non-ALPHA and non-DIGIT characters, as well as a change between the DIGIT sequence and the APLHA sequence and vice versa.

Sorry for my poor English ... hope my explanation seems clear, however.

Thanks for your great help.

Sincerely.

Answer 1

A command to match all occurrences of the regular expression preg_match_all() , which displays a multidimensional array of results. A regular expression is very simple ... any number ( [0-9] ) one or more times ( + ) or ( | ) any letter ( [Az] ) one or more times ( + ). Pay attention to capital A and lowercase z to include all uppercase and lowercase letters.

The tags textarea and php are included for convenience, so you can look into your php file and see the results.

 <textarea style="width:400px; height:400px;"> <?php foreach( array( "ES-3810/24MX", "CISCO1538M", "123ABC-ThatsHowEasy" ) as $string ){ // get all matches into an array preg_match_all("/[0-9]+|[[:upper:][:lower:]]+/",$string,$matches); // it is the 0th match that you are interested in... print_r( $matches[0] ); } ?> </textarea> 

What are the outputs in the text box:

 Array ( [0] => ES [1] => 3810 [2] => 24 [3] => MX ) Array ( [0] => CISCO [1] => 1538 [2] => M ) Array ( [0] => 123 [1] => ABC [2] => ThatsHowEasy ) 

Answer 2

 $str = "ES-3810/24MX35 123 TEST 34/TEST"; $str = preg_replace(array("#[^A-Z0-9]+#i","#\s+#","#([AZ])([0-9])#i","#([0-9])([AZ])#i"),array(" "," ","$1 $2","$1 $2"),$str); echo $str; $data = explode(" ",$str); print_r($data); 

I could not think of a cleaner way.