#PHP SUBSTRING EXTRACT HOW TO#

If the $offset is negative, the substr() function returns a substring that starts at the offset character from the end of the string. The $offset argument can be a negative number. PHP substr() function with negative offset Therefore, the substr() returns a substring, starting at index 4 to the end of the input string. In this example, we omit the $length argument. The following example uses the substr() function to extract a substring from the 'PHP substring' string starting from the index 4 to the end of the string: php substring extract

2) Using PHP substr() function with the default length argument In this example, the substr() function extract the first 3 characters from the 'PHP substring' string starting at the index 0. The following example uses the substr() function to extract the first three characters from a string: php substring extract

Let’s take some examples of using the substr() function. If the $length is 0, false, or null, the substr() function returns an empty string. If you omit the $length argument, the substr() function will extract a substring from the $offset to the end of the $string. $length is the number of characters to include in the substring.$offset is the position at which the function begins to extract the substring.Here’s the syntax of the substr() function: substr ( string $string, int $offset, int| null $length = null ) : string Code language: PHP ( php ) The substr() function accepts a string and returns a substring from the string. Introduction to the PHP substr() function

#PHP SUBSTRING EXTRACT HOW TO#

Summary: in this tutorial, you’ll learn how to use the PHP substr() function to extract a substring from a string.

Php substring extract