remove duplication of records in foreach loop in php and cakephp

Question

I need help with how to remove the duplication within list of countries based on country_id.

I have a table which includes many projects for a country and counting the projects number which is working fine but need to print without duplication, only one country_id with the count of its project.

The code has been added - if anyone can help it is appreciated

<table>
    <tr>
        <th>Country ID</th>
        <th>Country Name</th>
        <th>Number of Place</th>
    </tr>

    <?php 
    $country_counts = [];
    foreach ($projects as $project) {
    $country_id = $project['Project']['country_id'];
    if (isset($country_counts[$country_id])) {
        $country_counts[$country_id]++;
    ?>
        <tr>
            <td style="width: 30%"><?php echo $project['Project']['country_id']; ?></td>
            <td style="width: 30%"><?php echo 'Country Name'; ?></td>
            <td style="width: 30%"><?php echo $country_counts[$project['Project']['country_id']]; ?></td>
        </tr>
    <?php 
    } else {
        $country_counts[$country_id] = 1;
    }
    } 
    ?>

</table>

the result which i got is shows the result

Answer 1

Do something like this

$checkout_array = array_unique($checkout_array, SORT_REGULAR);

I did this for my own you can do it for your array

Answer 2

I am unable to test this code but the idea of what I suggested as the second options goes as follows:

<table>
    <tr>
        <th>Country ID</th>
        <th>Country Name</th>
        <th>Number of Place</th>
    </tr>

<?php 
    $country_counts=[];
    $ids=array();// Store unique country_id values here
    
    foreach( $projects as $project ) {
        $country_id = $project['Project']['country_id'];

        # Check if the country_id is NOT in the array and display if OK.
        if( isset( $country_counts[ $country_id ] ) && !in_array( $country_id, $ids ) ) {
            $country_counts[$country_id]++;
    ?>
    <tr>
        <td style="width: 30%"><?php echo $project['Project']['country_id']; ?></td>
        <td style="width: 30%"><?php echo 'Country Name'; ?></td>
        <td style="width: 30%"><?php echo $country_counts[$project['Project']['country_id']]; ?></td>
    </tr>
    <?php
    
            // add the country_ID to the array so that 
            // on the next iteration of the loop the $ids 
            // array will be checked again and no output if
            // it is already in the array.
            
            $ids[]=$country_id;
        } else {
            $country_counts[$country_id] = 1;
        }
    } 
?>

</table>