What is the function to convert to lowercase in php?

php's function to convert to lowercase is the strtolower function. The function of this function is to convert a string to lowercase. Its usage syntax is "strtolower(string)", and the parameter string specifies the string to be converted.

The operating environment of this article: windows7 system, PHP7.1 version, DELL G3 computer

What is the function of converting php to lowercase?

strtolower() function converts a string to lowercase.

Note: This function is binary safe.

Related functions:

lcfirst() - Convert the first character in the string to lowercase

strtoupper() - Convert the string to uppercase

ucfirst() - Converts the first character in the string to uppercase

ucwords() - Converts the first character of each word in the string to uppercase

Syntax

strtolower(string)

Parameters

string required. Specifies the string to be converted.

Return value: Returns the string converted to lowercase.

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