在x次之后，Foreach会做什么？

Question

I'm trying to create an automatic block with links [ They come from an array ], everything went well before I had too much links, Now they're all on the same line, How can I make foreach print br after 4 times?

now it's like this:

foreach($this->rpanelinks as $name => $url) {
    echo '<a href="' . BASE_URL . $url . '">' . $name . '</a>';
}

Thanks!

Answer 1

Use a counter:

$i = 1;

foreach($this->rpanelinks as $name => $url) {
    if($i == 4) 
        echo '<br>';

    echo '<a href="' . BASE_URL . $url . '">' . $name . '</a>';

    ++$i;
}

or if you wan't every 4 times

$i = 1;

foreach($this->rpanelinks as $name => $url) {
    if($i % 4 == 0) 
         echo '<br>';

    echo '<a href="' . BASE_URL . $url . '">' . $name . '</a>';

    ++$i;
}

$i % 4 calculates the rest of the operation $i / 4 and if it's 0 the value uf $i is dividable by 4 .

Answer 2

I don't understand the question much to be honest. However, you can put whatever logic to your foreach you want. For example:

$counter = 0;
foreach($this->rpanelinks as $name => $url) {
    $counter ++;
    echo '<a href="' . BASE_URL . $url . '">' . $name . '</a>';
    if ($counter %4 == 0) echo '<br />';
}

Answer 3

$i = 0;

foreach($this->rpanelinks as $name => $url) {
    ++$i;
    if($i >= 4){
        echo '<br/>';
        $i=0;
    }
    echo '<a href="' . BASE_URL . $url . '">' . $name . '</a>';

}

Answer 4

use variable to count your links, following code prints breakline after each 4 links

$counter = 0;
foreach($this->rpanelinks as $name => $url) {
    echo '<a href="' . BASE_URL . $url . '">' . $name . '</a>';
    if(++$counter % 4 == 0) {
        echo '<br />';
    }
}