I have an exercise I don’t know how to solve, because I am a beginner in php, here is the exercise summary:
the "str_split" function allows you to convert a character string into an array (if we have a $s string that we want to store in a $tab array, we will write "$ tab = str_split ($ s);". using this function, create a function which takes as parameter a character string and display the number of occurrences of each letter in this string.
JavaScript
x
<html> <head> <title>order</title> </head> <body> <?php function stringFunction($s) { $tab = array(); $counter = 0; $tab = str_split($s); $count = count($tab); for ($i = 0; $i < $count; $i++) { for ($j = 0; $j < $count; $j++) { if($tab[$i]==$tab[$j]){ $counter = $counter + 1; } } } return $counter; } echo stringFunction("aakkaaaall"); ?> </body></html>Advertisement
Answer
Something like below should work?
JavaScript
<?phpfunction stringFunction($s) { $tab = array(); $tab = str_split($s); $occurrences = array_fill(0, 26, 0); for ($i = 0; $i < count($tab); $i++) { $occurrences[(ord($tab[$i])-ord('a'))]++; } for ($i = 0; $i < count($occurrences); $i++) { if($occurrences[$i] != 0) { echo(chr(ord('a')+$i) . " = " . $occurrences[$i]."n"); } } } echo stringFunction("aajib");?>