php strpos usage example tutorial_PHP tutorial

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Definition and usage
The strpos () function returns the position of the first occurrence of another string inside a series.

If the string is not found, this function returns FALSE.

Grammar

strpos(string,find,start)

Parameter	Description
string	必选,
find	必需的。指定的查找字符串
start	可选,从哪里开始找

Description

string

Required,

find

Required. specified search string

start

Optional, where to start

Tips and Instructions Note: The strpos ( ) function is case-sensitive. For example

<!--?phpecho strpos("Hello world!","wo");?-->

结出结果:6

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