Get Content Between Two Strings PHP

How to get a substring between two strings in PHP?

If the strings are different (ie: [foo] & [/foo]), take a look at this post from Justin Cook.
I copy his code below:

function get_string_between($string, $start, $end){
    $string = ' ' . $string;
    $ini = strpos($string, $start);
    if ($ini == 0) return '';
    $ini += strlen($start);
    $len = strpos($string, $end, $ini) - $ini;
    return substr($string, $ini, $len);
}

$fullstring = 'this is my [tag]dog[/tag]';
$parsed = get_string_between($fullstring, '[tag]', '[/tag]');

echo $parsed; // (result = dog)

Get content between two strings PHP

Use # instead of / so you dont have to escape them.
The modifier s makes . and \s also include newlines.
{ and } has various functionality like from n to m times in {n,m}.

The basic

preg_match('#\\{FINDME\\}(.+)\\{/FINDME\\}#s',$out,$matches);

The advanced for various tags etc (styling is not so nice by the javascript).

$delimiter = '#';
$startTag = '{FINDME}';
$endTag = '{/FINDME}';
$regex = $delimiter . preg_quote($startTag, $delimiter) 
                    . '(.*?)' 
                    . preg_quote($endTag, $delimiter) 
                    . $delimiter 
                    . 's';
preg_match($regex,$out,$matches);

Put this code in a function

For any file which you do not want to execue any stray php code, you should use file_get_contents. include/require should not even be an option there.

Extract a substring between two characters in a string PHP

use this code

$input = "[modid=256]";
preg_match('~=(.*?)]~', $input, $output);
echo $output[1]; // 256

working example http://codepad.viper-7.com/0eD2ns

Get string between two strings

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];
}

Get string between - Find all occurrences PHP

One possible approach:

function getContents($str, $startDelimiter, $endDelimiter) {
  $contents = array();
  $startDelimiterLength = strlen($startDelimiter);
  $endDelimiterLength = strlen($endDelimiter);
  $startFrom = $contentStart = $contentEnd = 0;
  while (false !== ($contentStart = strpos($str, $startDelimiter, $startFrom))) {
    $contentStart += $startDelimiterLength;
    $contentEnd = strpos($str, $endDelimiter, $contentStart);
    if (false === $contentEnd) {
      break;
    }
    $contents[] = substr($str, $contentStart, $contentEnd - $contentStart);
    $startFrom = $contentEnd + $endDelimiterLength;
  }

  return $contents;
}

Usage:

$sample = '<start>One<end>aaa<start>TwoTwo<end>Three<start>Four<end><start>Five<end>';
print_r( getContents($sample, '<start>', '<end>') );
/*
Array
(
    [0] => One
    [1] => TwoTwo
    [2] => Four
    [3] => Five
)
*/

Demo.

get all occurance of string between two strings in php

Refer this link

http://forums.devshed.com/php-development-5/values-string-tags-578670.html

And change your code like this,

preg_match_all("#<abc([^<]+)>#", $yourstring, $ansvariable); 
//echo implode("::", $ansvariable[1]); 


foreach($yourstring[1] as $key => $val){
echo $yourstring[1][$key]."<br>"; // prints $val
}

Get ALL content between two tags in a string

Here is a function I've written some months ago for exactly this issue. You'd have to call the function several times with the offset according to the returned $pos in order to get all accurances. I hope that's acceptable.

/* getSubstring
   returns a substring between string_before and string_after,
   starts to search at the offset. character of source
   returns an array: ['text'] = string found
                     ['pos'] = starting position of string_before within source
   returns text = '' and pos = false if string is not found
   example: $key = get_substring('12345here67890', '12345','67890')[0];
*/

function getSubstring($source, $string_before, $string_after, $offset = 0, $includeEnvelope = false) {
   if (strlen($source)<$offset)
      return(array('text' => '', 'pos' => false)); // kind of silly, but prevents an 'Offset not contained in string' warning
   $pos1 = strpos($source, $string_before, $offset);
   $sb_len = strlen($string_before);
   if ($pos1===false) {
      $result = '';
   }
   else {
      $pos2 = strpos($source, $string_after, $pos1 + strlen($string_before));
      if ($pos2===false) {
         $result = '';
         $pos1 = false;
      }
      else {
         $result = substr($source, $pos1 + $sb_len, $pos2 - $pos1 - $sb_len);
         if ($includeEnvelope)
            $result = $string_before.$result.$string_after;
     }
   }
   return (array('text' => $result, 'pos' => $pos1));
}

Get substring between two strings PHP - Reading HTML

I think its because you are declaring text as a local variable inside for loop. so , after when you are assigning $text to fullstring It's actually null. I don't understand what you are trying to do , but do this and see if it works

$fullstring = ""
foreach ($tags as $tag){
    #your code as usual
    echo($text);
    $fullstring = $fullstring.$text;
}

and delete the $fullstring = $text line.

PHP regex - capturing content between two strings (multiple results)

If there is no section nesting, have a try with

preg_match_all('~\[\[(\w+)]]((?>[^[]+|\[[^[])*)\[\[/\1]]~s', $str, $out)

\[\[(\w+)]] captures one or more word characters [[ inside ]]
In between section-tags used (?>[^[]+|\[[^[])* rather than .*? for better performance but still allowing a[b]c. If you got nested stuff you can easily make this pattern recursive.
\[\[/\1]] ends the section with what was captured in first capturing group.

See php demo at eval.in or regex demo at regex101

Get multiple matches in string between two strings - small issue in function that I use?

$string = "somerandomcharacters[code]object1[/code]somerandomcharacters[code]object2[/code]somerandomcharacters[code]object3[/code]somerandomcharacters";

preg_match_all('%\[code\](.*?)\[/code\]%i', $string, $matches, PREG_PATTERN_ORDER);

print_r($matches[1]);

Output:

Array
(
    [0] => object1
    [1] => object2
    [2] => object3
)

Regex Explanation:

\[code\](.*?)\[/code\]

Options: Case insensitive

Match the character “[” literally «\[»
Match the character string “code” literally (case insensitive) «code»
Match the character “]” literally «\]»
Match the regex below and capture its match into backreference number 1 «(.*?)»
   Match any single character that is NOT a line break character (line feed) «.*?»
      Between zero and unlimited times, as few times as possible, expanding as needed (lazy) «*?»
Match the character “[” literally «\[»
Match the character string “/code” literally (case insensitive) «/code»
Match the character “]” literally «\]»

DEMO: http://ideone.com/wVvssx