How to remove the first comma on the left side of a php string

How to remove the first comma on the left in a php string

Example:

$str = ",a,b,c,d";
echo ltrim($str, ",");

The result returned is:

a,b,c,d

The function used is ltrim();

##ltrim() definition and usage

ltrim( ) function removes whitespace or other predefined characters from the left side of a string.

Syntax

ltrim(string,charlist)

Parameters

string Required. Specifies the string to check.

charlist Optional. Specifies which characters are removed from a string. If this parameter is omitted, all of the following characters are removed:

"\0" - NULL

"\t" - Tab

"\n" - Newline

"\x0B" - vertical tab

"\r" - carriage return

" " - space

Return value: Return modified String.

Related functions:

rtrim() - Removes whitespace characters or other predefined characters on the right side of the string.

trim() - Removes whitespace or other predefined characters from either side of a string.

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