CODEWITHSUNDEEP
phpstring
abh
abh

Reputation: 1239

remove substring from string by entering first and last character php

How can i remove substring from string by entering first and last character of substring in php

For example in string "Hello my name is John" if i enter 'n' and 's' it should return "Hello my John"... Please Help

Upvotes: 0

Views: 153

Answers (3)

Flosculus
Flosculus

Reputation: 6946

/**
 * Process function.
 * For lack of a better name.
 */
function process($f, $l, $subject)
{
    return preg_replace(sprintf('/%s.*?%s/', preg_quote($f), preg_quote($l)), '', $subject);
}

$f = 'n';
$l = 's';

echo process($f, $l, 'Hello my last name is Doe and my first name is John');

Output:

Hello my last  Doe at  John

I added utility, but it is effectively the same as preg_replace('/n.*?s/', '', $subject).

Upvotes: 1

MartaGom
MartaGom

Reputation: 501

You should get the position of the first and second letter and use strpos for the method substr

function my_Cut($string, $first_letter, $second_letter){
   $pos[] = strpos($string, $first_letter);
   $pos[] = strpos($string, $second_letter);
   $result = substr($string, $pos[0] , -($pos[1]-$pos[0]-2)); 
   return str_replace ($result, "", $string);
 }

  $string = "Hello my name is John";
  echo my_Cut($string, "n", "s");

Something like this... I think.

Upvotes: 1

UnskilledFreak
UnskilledFreak

Reputation: 306

with your string given:

$var = "Hello my name is John";

$sub = getSubString($var,"n","s");

echo $sub;

function getSubString($str,$start,$end) {

    if(($pos1=strpos($str,$start))===false)
        return $str; // not found


    if(($pos2=strpos($str,$end,$pos1))===false)
        return $str; // not found

    return substr($str,0,$pos1).substr($str,$pos2+1);
}

results in:

Hello my John

Upvotes: 1

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