PHP String Functions

PHP provides various string functions to access and manipulate strings. A list of important PHP string functions are given below.

1) PHP strtolower() function

The strtolower() function returns string in lowercase letter.

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2) PHP strtoupper() function

The strtoupper() function returns string in uppercase letter.

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3) PHP ucfirst() function

The ucfirst() function returns string converting first character into uppercase. It doesn't change the case of other characters.

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4) PHP lcfirst() function

The lcfirst() function returns string converting first character into lowercase. It doesn't change the case of other characters.

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5) PHP ucwords() function

The ucwords() function returns string converting first character of each word into uppercase.

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6) PHP strrev() function

The strrev() function returns reversed string.

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7) PHP strlen() function

The strlen() function returns length of the string.

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