الشكل الرسمى
كود PHP:
mixed count_chars(string str [, int mode])
تعتمد بشكل رسمى على قيمة mode
0 تقوم بأرجاع مصفوفة تتكون من كل الحروف المعروفة ك key وعدد مرات ظهورها ك vakue
1 نفس 0 ولكن فقط الحروف التى عدد مرات ظهورها أكبر من 0
2 نفس 0 ولكن فقط الحروف التى مرات تكرارها يساوى صفر
مثال
كود PHP:
<?php
$sentence = "The rain in Spain falls mainly on the plain";
// Retrieve located characters and their corresponding frequency.
$chart = count_chars($sentence, 1);
foreach($chart as $letter=>$frequency)
echo "Character ".chr($letter)." appears $frequency times<br />";
?>
الناتج
كود:
Character appears 8 times
Character S appears 1 times
Character T appears 1 times
Character a appears 5 times
Character e appears 2 times
Character f appears 1 times
Character h appears 2 times
Character i appears 5 times
Character l appears 4 times
Character m appears 1 times