Php count chars
From w3cyberlearnings
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PHP function count_chars
This function checks how many times an ASCII character occurs within a string.
Syntax count_chars
- string: string input
- mode: return mode
- 0 - array with the ASCII values as key and number of occurrences as value
- 1 - only list the occurrence that is greater than zero. ASCII Value=> number of occurrences
- 2 - only list the occurrence equals to zero. ASCII Value=>number of occurrences
- 3 - List all characters in use in alphabetical order.
- 4 - List with un-used characters.
count_chars(string);
Example 1
<?php $str="gett"; print_r(count_chars($str,1)); ?>
Output
Array
(
[101] => 1
[103] => 1
[116] => 2
)
Example 2
<?php
$str="she is great";
$contains = count_chars($str,1);
foreach($contains as $k=>$v) {
echo chr($k). ' contains '. $v. '<br/>';
}
?>
Output
contains 2 a contains 1 e contains 2 g contains 1 h contains 1 i contains 1 r contains 1 s contains 2 t contains 1
Example 3
<?php $str="she"; print_r(count_chars($str,3)); ?>
Output
ehs
Example 4:
<?php $str="she a3133 ABCDEF"; print_r(count_chars($str,4)); ?>
Output: Characters in $str is not displayed here
��������
��
������������������!"#$%&'()*+,-./02456789:;
<=>?@GHIJKLMNOPQRSTUVWXYZ[\]^_`bcdfgijklmnopqr
tuvwxyz{|}~€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§¨
©ª«¬®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛ
ÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ
