How to convert English to lowercase in php

How to convert English to lowercase in php: 1. Use the lcfirst() function to change the first letter of the first English word to lowercase; 2. Use the strtolower() function to change all letters to lowercase.

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

How to convert English to lowercase in php?

Change the first letter of the first word to lowercase: lcfirst()

The code is as follows:

Change all letters to lowercase: strtolower()

The strtolower() function converts a string to lowercase, and the syntax is "strtolower(string)".

Note: This function is binary safe.

Related introduction:

Convert the first letter of each word to uppercase: ucwords()

The code is as follows:

The first letter of the first word Change to uppercase: ucfirst()

The code is as follows:

Change all letters to uppercase: strtoupper()

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