PHP STRINGS AND REGULAR EXPRESSIONS MCQ

Php programming

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Which PHP function treats a string as collection of characters rather than a sequence?
By using special wildcards for matching a string which function is used?
In Perl-compatible patterns any pattern that is followed by ? this means that
What is meaning of "." in POSIX style regex?
Why a special character is used in beginning and end of string in Perl-compatible patterns?
Ereg ( ) function is no more included in
Inverse function of explode ( ) is
All these functions are preg_quote ( ), preg_grep ( ), preg_split ( ), preg_match_all ( ) example of
Htmlspecialchars ( ) function takes a string as argument and returns string in which form, that has a special meaning in HTML
MD5 is not secure to store passwords because
PHP removes ereg functions, and prefer using
A sequence of characters that is treated as a unit is called
Ltrim ( ) returns its string argument with
When two strings are exactly equivalent Strcmp ( ) returns what?
For finding out one string is equal to another string which function we can use?
Returns a string arguments with trilling blank space removed, is a behavior of
Which function is used for replacing whole string with an alternate string?
Stristr ( ) is identical to Strstr ( ) except that
Replacing string from left hand side is known as
A function that capitalizes first letter of each word in a string, is a

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