Laravel Tech Community

Aug 9, 2020 · Backend Development

PHP stristr() Function: Syntax, Parameters, Return Value, and Examples

This article explains the PHP stristr() function—the case‑insensitive version of strstr—including its syntax, parameter details, return behavior, and three illustrative code examples demonstrating typical usage scenarios. It also clarifies the effect of the optional before_needle flag and shows how to handle cases where the needle is not found.