February 2013
Intermediate to advanced
538 pages
20h 55m
English
Content preview from Programming PHP, 3rd Edition
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Name
count_chars
Synopsis
mixed count_chars(stringstring[, intmode])
Returns the number of occurrences of each byte value from 0–255
in string; mode
determines the form of the result. The possible values of
mode are:
| Returns an associative array with each byte value as a key and the frequency of that byte value as the value |
| Same as above, except that only byte values with a nonzero frequency are listed |
| Same as above, except that only byte values with a frequency of zero are listed |
| Returns a string containing all byte values with a nonzero frequency |
| Returns a string containing all byte values with a frequency of zero |
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