PHP count of occurrences of characters of a string within another string

Let's say I have two strings. $needle = 'AGUXYZ'; $haystack = 'Agriculture ID XYZ-A'; I want to count how often characters that are in $needle occur in $haystack. In $haystack, there are the characters 'A' (twice), 'X', 'Y' and 'Z', all of which are in the needle, thus the result is supposed to be 5 (case-sensitive). function count_occurences($char_string, $haystack, $case_sensitive = true){ if($case_sensitive === false){ $char_string = strtolower($char_string); $haystack = strtolower($haystack); ...

How can I count white spaces using substr_count() in PHP

One way could be to remove all other characters and count what's left. You could do this with something like the following: <?php $text = 'This is a test';  echo substr_count($text, ' '); // 3 // $count_var = preg_replace('[^\s]', '', $string); $count = strlen($count_var);//Replace any non-whitespace with nothing, count the result: echo strlen(preg_replace('/\S/', '', $text));//This works for any whitespace, including tabs the like.substr_count should work fine though for regular spaces:echo substr_count($text, ' '); $test = "sadlk...

PHP : substr_count() function

substr_count() function Description The substr_count() function is used to count the number of times a substring occurs in a string. Note that substring is case sensitive. Version (PHP 4 and above) Syntax substr_count(string1, string2, nstart, nlength) Parameters NameDescriptionRequired /OptionalType string1The string to search in.RequiredString string2The substring to search for.RequiredString nstartThe position where string to start searching.OptionalInteger nlengthThe length of the string to be searched for.OptionalInteger Return...

How to change the time in apache server so it matches the computer's time (PHP)?

date_default_timezone_set ( string $timezone_identifier ) You can also set this in your php.ini config. Example: date_default_timezone_set ('Asia/Kolkata'); &nbs...