What is the usage of strstr function in php

The usage of strstr function in php is to search whether a string exists in another string, such as [strstr("Hello world!",111);]. If present, the function returns the string and the remainder.

The operating environment of this article: windows10 system, php 7.3, thinkpad t480 computer.

strstr() function searches whether a string exists in another string. If so, returns the string and the remaining part, otherwise returns FALSE.

For example, search the string through the ASCII value of "o" and return the remaining part of the string

Running result:

o world!

For example, we want to return " world" The string part before the first appearance

Running results:

Hello

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