Add to an array the content generated by a foreach - php

Question

i display with a foreach the content of a user_meta in wordpress. It displays input taht fills with the values (so they can be changed). I want to be able to store each content in a new array (so i can update the user_meta next.
So here is the main code :
<?php
function edit_profile_form() {
$current_user_id = get_current_user_id();
$data = get_user_meta ($current_user_id);
if (isset($_POST['button2'])) {
delete_user_meta($current_user_id, 'experiences');
}
if(isset($_POST['button1'])) {
save_extra_profile_fields($current_user_id);
};
$experiences = get_user_meta($current_user_id, 'experiences', true);
?>
<div class="container_form">
<form method="POST">
<h3>Vos expériences</h3>
<div class="experiences_container">
<?php
if (!empty($experiences)) {
$index=0;
foreach ($experiences as $key) {
$index++;
echo($index);
echo($key);
?>
<div class="past_experience">
<div class="experience_header">
<div>
<label for="team">Nom de l'équipe</label>
<input class="team" name="team" value="<?= $key['new_experience_team'];?>"/>
</div>
<div>
<label for="role">Rôle dans l'équipe</label>
<input class="role" name="role" value="<?= $key['new_experience_role'];?>"/>
</div>
</div>
<div class="experience_textarea">
<label for="description">Description du rôle</label>
<textarea class="description" name="description"><?= $key['new_experience_description']; ?></textarea>
<label for="palmares">Palmarés avec l'équipe</label>
<textarea class="palmares" name="palmares"><?= $key['new_experience_palmares']; ?></textarea>
</div>
</div>
<?php
}
} else {
?>
<div><p>Vous n'avez encore rentré aucune expérience</p></div>
<?php
}?>
</div>
<div class="add_container">
<div id="dropdown">
<i class="fas fa-plus-square" style="margin-right: 5px;"></i>
<p id="show" onClick="dropdown()" >Ajouter une expérience</p>
</div>
<div id="experience" style="display:none;">
<label for="new_experience_team">Nom de l'équipe</label>
<input type="text" name="experiences[new_experience_team]" id="experience_team">
<label for="new_experience_role">Rôle dans l'équipe</label>
<input type="text" name="experiences[new_experience_role]" id="experience_role">
<label for="new_experience_description">Description du poste</label>
<textarea type="text" name="experiences[new_experience_description]" id="experience_description"></textarea>
<label for="new_experience_palmares">Palmarés</label>
<textarea type="text" name="experiences[new_experience_palmares]" id="experience_palmares"></textarea>
</div>
</div>
<div id="button_container">
<input type="submit" name="button1" value="Sauvegarder" id='save'/>
<input type="submit" name="button2" value="Annuler"/>
</div>
</form>
</div>
The function's one :
<?php
function save_extra_profile_fields( $user_id ) {
if (!empty($_POST['experiences'])) {
$savedexperience = get_user_meta($user_id, 'experiences', true);
if (!empty($savedexperience) && is_array($savedexperience )) {
$experiences = $savedexperience;
}
$experiences[] = $_POST['experiences'];
update_usermeta($user_id, 'experiences', $experiences);
}
}
So i want to be able to stock in a array each group of team, role, description and palmares.
I don't know if it's clear at all :/
Thanks all