PHP ltrim(): Remove Leading Characters

The ltrim function is used to remove leading spaces or specified characters from a string. Its syntax is:

ltrim(string, characters)

In this case, the variable “string” represents the string that needs to be processed, and the variable “characters” is an optional parameter that indicates a list of characters to be removed from the beginning of the string. If the “characters” parameter is not specified, spaces will be removed by default.

“For example:”

$str = "  Hello World!";
echo ltrim($str); // 输出：Hello World!