PHP String Functions Quiz

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The substr() function returns a part of a string.

strtoupper(string);

Returns the length of a string.

trim() (A) Signup and view all the answers

Reverses a string. Signup and view all the answers

Breaks a string into an array. Signup and view all the answers

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The substr() function returns a part of a string.
- Syntax: substr(string,start,length);
The strtoupper() function converts a string to uppercase.
- Syntax: strtoupper(string);
The strtolower() function converts a string to lowercase.
The strlen() function returns the length of a string.
- Syntax: strlen(string);
The trim() function removes whitespace and other predefined characters from both sides of a string.
- Syntax: trim(string, charlist);
- The ltrim() function removes whitespace or other predefined characters from the left side of a string.
- The rtrim() function removes whitespace or other predefined characters from the right side of a string.
The strrev() function reverses a string.
- Syntax: strrev(string);
The explode() function breaks a string into an array.
- Syntax: explode(separator,string);