Re: twodimensional array / word-frequencylist

hi dore, Dore Van Hoorn wrote: > # i would like a similar function that removes interpuntuation like > "." etc. # all i want remaining in the array are the separate words, > all in lower > case maybe you can replace your unwanted chars with preg_replace() i.e.: $textStripped = preg_replace("/[.:;]/", "", $textInterPuncted); > # i would like a function that pushes this word into a second array. > # before pushing, it has to check whether or not the same word is > already > in the array. > # if it is: do not push word into array, but add "1" to the number of > occurrences of that word > # if it is not: push this new word into array > # all of this has to result into a word - frequency array (content > analysis > of free text) > # question 1: how do i produce such an array? how about this: if(array_key_exists($wordInText, $occurences)) { $occurences[$wordInText]++; } else { $occurences[$wordInText] = 1; } > # question 2: how do i get the two elements (word and number of > occurrences) > > # together out of the array and print them to the screen? > # f.e.: the word "computer" occurred two times in this text. look at the array-stucture with print_r, var_dump, var_export, ... or loop through the array: echo "<table>"; foreach($occurences as $word => $count) { echo "<tr><td>$word</td><td>$count</td></tr>" } echo "</table>"; hope this helps. (didn't test the code, just wote it from brain. but the manual would be your friend) ciao SVEN