Very simple, there's a function designed just for this. check out the manual for array_count_values()
array_count_values() returns an array using the values of the input array as keys and their frequency in input as values. EXAMPLE: $array = array (1, "hello", 1, "world", "hello"); print_r(array_count_values ($array)); The printout of the above program will be: Array ( [1] => 2 [hello] => 2 [world] => 1 ) -Cheers -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] t]On Behalf Of Dore van Hoorn Sent: Thursday, June 26, 2003 4:56 PM To: [EMAIL PROTECTED] Subject: [PHP] twodimensional array / word-frequencylist Hi, I asked the same question two days ago, but i have not received an answer that could really help me on my way... So i'll try again, this time with the help of a little PHP code, and soms explanations while($myrow = mysql_fetch_row($result)) # as long as there are texts in the database { $text = $myrow[0]; # variabele text contains the text $array = array(); # variabele array is an empty array $modText = strtolower($text); #modify text: string to lower case $array = split(" ",$modText); #split text after empty space to create array of words # 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 sort($array); # sort array elements in alphabetical order $num = count($array); # count the number of elements in the array for ($c=0; $c<=$num; $c++) #as long as function has nog reached past last element in array { $wordInText = $array[$c]; #array element is word in text echo "$wordInText<br>"; #print word in text } # 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? # 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. } I do hope there is someone out there who can help me with this problem, and help me fast.... Thnx in advance!! Dore. +++++++++++++++++++++++++++++++++++ N Dore van Hoorn S s1000454 AlfaInformatica-RuG E [EMAIL PROTECTED] W http://www.let.rug.nl/~s1000454 +++++++++++++++++++++++++++++++++++ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php --- Incoming mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.491 / Virus Database: 290 - Release Date: 6/18/2003 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.491 / Virus Database: 290 - Release Date: 6/18/2003 -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
