PHP: strcspn() function
The strcspn() function is used to get the number of characters that occur between the start of the main string and the first occurrence of any character listed in the second string.
(PHP 4 and above)
strcspn(main_string, second_string, start_position, string_length)
|main_string||The initial string.||Required||String|
|second_string||The second string whose characters will be checked.||Required||String|
|start_position||Starting position of the string to examine.||Optional||Integer|
|string_length||Length of the string to examine.||Optional||Integer|
The length of the segment.
Value Type: Integer.
<?php echo strcspn('W3resource.com', '.'); ?>
PHP: Tips of the Day
In PHP, there are two versions of logical AND and OR operators.
|$a and $b||Both $a and $b are true|
|$a && $b||Both $a and $b are true|
|$a or $b||Either $a or $b is true|
|$a || $b||Either $a or $b is true|
Note that the && and || opererators have higher precedence than and and or. See table below:
|Evaluation||Result of $e||Evaluated as|
|$e = false || true||True||$e = (false || true)|
|$e = false or true||False||($e = false) or true|
Because of this it's safer to use && and || instead of and and or.
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