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Php stristr () function

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(PHP 3>= 3.0.6, PHP 4 , PHP 5)

stristr --  Case-insensitive strstr()

Syntax

string stristr ( string haystack, string needle )

Returns all of haystack from the first occurrence of needle to the end. needle and haystack are examined in a case-insensitive manner.

If needle is not found, returns FALSE.

If needle is not a string, it is converted to an integer and applied as the ordinal value of a character.

Example 1. stristr() example

<?php
  $email
= 'USER@EXAMPLE.com';
  echo
stristr($email, 'e');
// outputs ER@EXAMPLE.com
?>

Example 2. Testing if a string is found or not

<?php
  $string
= 'Hello World!';
  if(
stristr($string, 'earth') === FALSE) {
    echo
'"earth" not found in string';
  }
// outputs: "earth" not found in string
?>

Example 3. Using a non "string" needle

<?php
  $string
= 'APPLE';
  echo
stristr($string, 97); // 97 = lowercase a
// outputs: APPLE
?>

Note: This function is binary-safe.

See also strstr(), strrchr(), substr(), and ereg().

Php stristr Function syntax tag

stristr php code on this is provided for your study purpose, it will guide you to know how create and design a website using php. use it to practice and train your self online



Php stristr syntax tutorial

php tutorial guide and code design are for easy learning and programming. The code practice section provided at the top is for practising of this syntax. Use the code section up to practice your php programming online. Learning php is very easy, all you need is to use the examples on this site and practice them to perfect your skills.


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