Get string between two strings - php

Question

My string is: "reply-234-private", i want to get the number after "reply-" and before "-private", it is "234". I have tried with following code but it returns an empty result:
$string = 'reply-234-private';
$display = preg_replace('/reply-(.*?)-private/','',$string);
echo $display;

Answer 1

You can just explode it:
<?php
$string = 'reply-234-private';
$display = explode('-', $string);
var_dump($display);
// prints array(3) { [0]=> string(5) "reply" [1]=> string(3) "234" [2]=> string(7) "private" }
echo $display[1];
// prints 234
Or, use preg_match
<?php
$string = 'reply-234-private';
if (preg_match('/reply-(.*?)-private/', $string, $display) === 1) {
echo $display[1];
}

Answer 2

Have a look at explode() function
something like this:
$myString = 'reply-234-private';
$myStringPartsArray = explode("-", $myString);
$answer = $myStringPartsArray[1];

Answer 3

This article show you, How to get of everything string between two tags or two strings.
http://okeschool.com/articles/312/string/how-to-get-of-everything-string-between-two-tag-or-two-strings
<?php
// Create the Function to get the string
function GetStringBetween ($string, $start, $finish) {
$string = " ".$string;
$position = strpos($string, $start);
if ($position == 0) return "";
$position += strlen($start);
$length = strpos($string, $finish, $position) - $position;
return substr($string, $position, $length);
}
?>
in case your question, you can try this :
$string1='reply-234-private';
echo GetStringBetween ($string1, "-", "-")
or we can use any 'identifier string' for grab the string between the identifier string. for example:
echo GetStringBetween ($string1, "reply-", "-private")

Answer 4

Use php's inbuilt regex support functions
preg_match_all
this would help, suppose you want the array of strings(keys) between ## in following example, where '/' doesn't fall in-between, you can built new example with different start an end variable
function getInbetweenStrings($start, $end, $str){
$matches = array();
$regex = "/$start([a-zA-Z0-9_]*)$end/";
preg_match_all($regex, $str, $matches);
return $matches[1];
}
$str = "C://##ad_custom_attr1##/##upn##/##samaccountname##";
$str_arr = getInbetweenStrings('##', '##', $str);
print_r($str_arr);

Answer 5

$myString = 'reply-234-private';
echo str_replace('-','',filter_var($myString,FILTER_SANITIZE_NUMBER_INT));
That should do the job.

Answer 6

If you want to do it in js, try this function -
function getStringBetween(str , fromStr , toStr){
var fromStrIndex = str.indexOf(fromStr) == -1 ? 0 : str.indexOf(fromStr) + fromStr.length;
var toStrIndex = str.slice(fromStrIndex).indexOf(toStr) == -1 ? str.length-1 : str.slice(fromStrIndex).indexOf(toStr) + fromStrIndex;
var strBtween = str.substring(fromStrIndex,toStrIndex);
return strBtween;
}