John Davidson

Message:

how to add a new value to a multidimensional array keeping the key if preg_match found a match with the files in my directory ?

 <?php



if(isset($_POST['submit'])){



    $txt1 = $_FILES['filetxt']['tmp_name'];

    $txt2 = $_FILES['filetxt']['name'];



    $g = glob('./upload/img/*.*');



    foreach ($txt2 as $var) {



        $rap = explode(' ', $var);

        

        $zc = count($rap);



        for ($i=0; $i < $zc; $i++) { 



            $str = $rap[$i];

            $ext = substr($str, 0, strrpos($str, "."));

            $pattern = "/$ext/i";

            

            if(preg_match_all($pattern, $str, $matches)) {

            $array = array_map('array_filter', $matches);

            $array = array_filter($array);            

            

            }

            

        }

        var_dump($array);



    }





}

Here's result of $array (pattern for preg_match):

array(1) {

  [0]=>

  string(12) "dropshipping"

}

array(1) {

  [0]=>

  string(9) "standards"

}

array(1) {

  [0]=>

  string(8) "boutique"

}

array(1) {

  [0]=>

  string(7) "vitrine"

}

I would like to apply preg_match on each value of the txt2 array and recursively insert the corresponding values ​​if the condition is true.

here's result of txt2 array:

array(4) {

  [0]=>

  string(22) "Texte dropshipping.txt"

  [1]=>

  string(24) "Texte site standards.txt"

  [2]=>

  string(22) "Texte sur boutique.txt"

  [3]=>

  string(30) "Texte sur les site vitrine.txt"

}

---

My Answer:
You can achieve this by using a recursive function to iterate through the multidimensional array and check if any of the values match the pattern using `preg_match`. If a match is found, you can add a new value to the array while keeping the key intact.

Here's an example code snippet to demonstrate this:

php
function addValueIfMatch(&$array, $pattern, $newValue) {
foreach ($array as $key => &$value) {
if (is_array($value)) {
addValueIfMatch($value, $pattern, $newValue);
} else {
if (preg_match($pattern, $value)) {
$array[$key] = $value;
$array['new_value'] = $newValue;
}
}
}
}

$pattern = '/\.txt$/'; // Pattern to match files ending with .txt
$newValue = 'new_value_to_add';

// Your multidimensional array
$array = [
'file1' => 'file1.txt',
'file2' => 'file2.jpg',
'nested_array' => [
'file3' => 'file3.txt',
'file4' => 'file4.png'
]
];

addValueIfMatch($array, $pattern, $newValue);

print_r($array);


In this code snippet, the `addValueIfMatch` function recursively iterates through the multidimensional array and checks if any of the values match the specified pattern using `preg_match`. If a match is found, it adds a new key-value pair to the array while keeping the original key intact.

You can adjust the pattern and new value according to your requirements.