Can You 'Exit' a Loop in PHP

Can you 'exit' a loop in PHP?

You are looking for the break statement.

$arr = array('one', 'two', 'three', 'four', 'stop', 'five');
while (list(, $val) = each($arr)) {
    if ($val == 'stop') {
        break;    /* You could also write 'break 1;' here. */
    }
    echo "$val<br />\n";
}

Break, continue and exit issue while using with loop PHP 5.6

break ends execution of the current for, foreach, while, do-while or switch structure.

break 1 will only break out of your "switch" statement, you will need break 2 to reach the while loop nesting level.

$count = 0;
while( $count++ < 10 )
{
  echo 'while';
  switch( true )
  {
    case true:
      echo 'switch';
      break 2; // TWO is needed here to break out of TWO levels of nesting
  }
}

https://www.php.net/manual/en/control-structures.break.php

break accepts an optional numeric argument which tells it how many nested enclosing structures are to be broken out of. The default value is 1, only the immediate enclosing structure is broken out of.

PHP - Exit For Loop After Wrong Answer

You are missing your brackets in your for loop. I'm surprised the elseif is the culprit and that the code doesn't fail anyways. But here is what I would do, errors aside:

$correct = false;

for ($i = 0 ; $i < count($stateCapitalNames); $i++){
    if ($enteredCity == $stateCapitalNames[$i]) {
         $correct = true;
         $stateNames = $stateNames[$i]; // Updated $stateNames variable

         break;
    }
}

//You can check $correct here...
if($correct){
    print "<p>$enteredCity is the capital of <b>$stateNames[$i]</b>. </p>"; /*Removed [$i] from  $stateNames. For some reason, $stateNames[$i] wasn't updating outside the loop, but now it is. 
}

This way, no matter what, until the code finds a correct answer, the user is wronge. Once it finds the right answer, it sets it as correct and exits the loop by setting $i to the length of the array.

PHP - Break after return?

It will run just once, stop looping, and exit from the function/method.

It could be argued though that this is bad style. It is very easy to overlook that return later, which is bad for debugging and maintenance.

Using break might be cleaner:

for($i = 0; $i < 5; $i ++) {
    if($var[$i] === '')
     { set_some_condition; 
       break;
     }
}

if (some_condition)
 return;

Exit from a loop in php in a wordpress envirnoment

You should try indenting your code to see clearer what is happening.

Why do you this:

$counter++;
if ($counter % 1 == 0) {
    echo '<li>';
}
if ($counter == false) {
    echo '</li>';
}

Your $counter is not initialized, your $counter % 1 will always result $counter.
Couldn't understand what are you trying to achieve here.

Anyway, why don't you put the "

echo '<li><h4>' . get_post_meta($post->ID, 'name', true) . '</h4></li>' ;

$device = "wanted";
foreach($equipxml as $equip) {
    $current_device = $equip->xpath("name");
    if ( $current_device[0] == $device ) {
        // found a match in the file            
        $nodeid = $equip->id;

        // will leave the foreach loop and also the if statement
        break;
        some_function(); // never reached!
    }
    another_function();  // not executed after match/break
}

foreach (['1','2','3'] as $a) {
    echo "$a ";
    foreach (['3','2','1'] as $b) {
        echo "$b ";
        if ($a == $b) { 
            break 2;  // this will break both foreach loops
        }
    }
    echo ". ";  // never reached!
}
echo "!";

break 2;

if($bla): 
  $bla = get_bla();
  if(!empty($bla)) {
    do($bla);
  }
endif;

break; #breaks out of a loop
continue; #skips rest of current iteration