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#Php substring extract how to#

$length is an optional parameter of the PHP substring function and it specifies the length of the string to be cut.

If the $string size is less than $start value, it returns FALSE.

If $start has a negative value, the returned string starts from $start character position from the end of the string, and counting begins from -1.

If $start has a positive value, the returned string starts from the $start position in the string, and counting begins from zero.

The input is an integer and it has following conditions. $string is the second mandatory parameter in PHP substring function and it specifies the starting position from where the substring will be extracted. $string is a mandatory parameter in the PHP substring function and it takes the original string value to extract substring from a string in PHP. It specifies the string that needs to be changed or removed.

The syntax of the substr() function contains three parameters, $string, $start and $length, in which the first two are mandatory, and the last one is optional.

The PHP substring has the following syntax.

#Php substring extract how to#

Here we will discuss how to extract a substring from a string in PHP using Substr(). The PHP substring function accepts a string and returns a substring from the string. PHP substring, also known as PHP Substr(), is the most common PHP string function and it is used to extract a part of a string.

PHP offers a variety of functions, including the PHP substring function, to make it easy to work with different data types. Advance Microsoft Office Package Training.Red Hat Certified Engineer RHCE Training.Quality Assurance and Quality Control(QA & QC).