PHP stripos()Functions

PHP String 参考手册PHP String Reference Manual

Examples

Find the first occurrence of "php" in a string:

<?php
echo stripos("I love php, I love php too!","PHP");
?>

Run Example »

Definition and Usage

The stripos() function finds the first occurrence of a string within another string (case-insensitive).

Note:The stripos() function is case-insensitive.

Note:This function is binary-safe.

Related functions:

  • strripos()- Finds the last occurrence of a string within another string (case-insensitive)
  • strpos()- Finds the first occurrence of a string within another string (case-sensitive)
  • strrpos()- Finds the last occurrence of a string within another string (case-sensitive)

Syntax

stripos(string,find,start)

Parameters Description
string Required. Specifies the string to be searched.
find Required. Specifies the character to search for.
start Optional. Specifies the position to start the search.

Technical Details

Return value: Returns the position of the first occurrence of a string within another string, or FALSE if the string is not found.Note:String positions start at 0, not at 1.
PHP Version: 5+


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