CODEWITHSUNDEEP
phpregex
Vhanjan
Vhanjan

Reputation: 115

Counting img tags line by line

I'm trying to count all <img> tags inside a string line by line but cant figure it out. i've already made to split the string line by line, then count the <img> tags after it.

Example :

$string = "
some text <img src="" /> some text <img src="" /> some text  <img src="" /> some text \n
some text <img src="" /> some text `<img src="" /> some text  <img src="" /> some text ";

now my code is first to split it line by line

$array = explode("\n", $string);

now count how many <img> tags are there in the first line of var string.

$first_line = $array['0'];

i was using preg_match() to get match for img tags.

$img_line = preg_match("#<img.+>#U", $array['0']);
echo count($img_line);

this wont work for me, in the $string there are 3 <img src=""> per line but my code gives me only 1.

any hint or tips are highly appreciated.

Upvotes: 1

Views: 1521

Answers (4)

Nadh
Nadh

Reputation: 7263

<?php

$string = 'some text <img src="" /> some text <img src="" /> some text  <img src="" /> some text \n
some text <img src="" /> some text `<img src="" /> some text  <img src="" /> some text ';

$count = preg_match_all("/<img/is", $string, $matches);

echo $count;

?>

Upvotes: 0

piouPiouM
piouPiouM

Reputation: 5037

You can try the following code:

<?php
$string = <<<TXT
some text <img src="" /> some text <img src="" /> some text  <img src="" /> some text
some text <img src="" /> some text <img src="" /> some text  <img src="" /> some text
TXT;

$lines = explode("\n", $string);
// For each line
$count = array_map(function ($v) {
  // If one or more img tag are found
  if (preg_match_all('#<img [^>]*>#i', $v, $matches, PREG_SET_ORDER)) {
    // We return the count of tags.
    return count($matches);
  }
}, $lines);

/*
Array
(
    [0] => 3 // Line 1
    [1] => 3 // Line 2 
)
*/
print_r($count);

Here, PREG_SET_ORDERstores the results in a single level (first capture to index $matches[0], second capture to index $matches[1]). Thus, we can easily retrieve the number of catches.

Upvotes: 0

Vhanjan
Vhanjan

Reputation: 115

Got it..

After splitting the string per line. 

$first_line = $array['0'];
$match = preg_match_all("#<img.+>#U", $first_line, $matches);
print_r($matches);
echo count($matches['0']);

the code above will return this..

    Array
    (
        [0] => Array
            (
                [0] => 
                [1] => 
                [2] => 
            )
    )

3

Upvotes: 0

Seth
Seth

Reputation: 1373

If you do a simple explode line by line, this will give you the count:

$explode = explode('<img ', $array[0]);
echo count($explode);

Upvotes: 1

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