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substr

Format: substr ( string, start , length )

Purpose: Get a substring of a string. In contrast to substring(), the third argument specifies the length. The parameter string must be a string, parameters start and length must be integers. If start is less than 0, it is set to 0.

Return Values: Returns a substr of string starting at position start with length length. Positions are counted from left to right starting with 0. If length is equal to 0 or start is greater than the length of the string, then an empty string is returned.

Example:

input:resulting output:
<? substr ("Hello World",6,3)>Wor
<? substr ("Hello World",6,0)>

See Also: substring().


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