Php array iterator get last element

Table of contents
• Find the last element of an array while using a foreach loop in PHP
• Determine the first and last iteration in a foreach loop in PHP?
• Determine the First and Last Iteration in a Foreach Loop in PHP
• 5 Ways To Loop Through An Array In PHP

Find the last element of an array while using a foreach loop in PHP

for(int i=0; i< arr.length;i++){
     boolean isLastElem = i== (arr.length -1) ? true : false;        
}

$numItems = count($arr);
$i = 0;
foreach($arr as $key=>$value) {
  if(++$i === $numItems) {
    echo "last index!";
  }
}    

$last_key = end(array_keys($array));
foreach ($array as $key => $value) {
    if ($key == $last_key) {
        // last element
    } else {
        // not last element
    }
}

foreach($input as $key => $value) {
    $ret .= "$value";
    if (next($input)==true) $ret .= ",";
}

$toEnd = count($arr);
foreach($arr as $key=>$value) {
  if (0 === --$toEnd) {
    echo "last index! $value";
  }
}

foreach($arr as $key=>$value) {
  //something
}
echo "last index! $key => $value";

//If you use this in a large global code without namespaces or functions then you can copy the array like this:
//$array = $originalArrayName; //uncomment to copy an array you may use after this loop

//end($array); $lastKey = key($array); //uncomment if you use the keys
$lastValue = array_pop($array);

//do something special with the last value here before you process all the others?
echo "Last is $lastValue", "\n";

foreach ($array as $key => $value) {
    //do something with all values before the last value
    echo "All except last value: $value", "\n";
}

//do something special with the last value here after you process all the others?
echo "Last is $lastValue", "\n";

$params = [];
foreach ($array as $value) {
    $params[] = doSomething($value);
}
$parameters = implode(" and ", $params);

$arr = range(1, 3);

$it = new CachingIterator(new ArrayIterator($arr));
foreach($it as $key => $value)
{
  if (!$it->hasNext()) echo 'Last:';
  echo $value, "\n";
}

foreach ($some_array as $element) {
    if(!next($some_array)) {
         // This is the last $element
    }
}

foreach($array as $value) {
    if ($value === reset($array)) {
        echo 'FIRST ELEMENT!';
    }

    if ($value === end($array)) {
        echo 'LAST ITEM!';
    }
}

$last_key = array_key_last($array);
foreach ($array as $key => $value) {
    if ($key == $last_key) {
        // last element
    } else {
        // not last element
    }
}

foreach($array as $element) {
    if ($element === end($array))
        echo 'LAST ELEMENT!';
}

foreach($array as $key => $element) {
    end($array);
    if ($key === key($array))
        echo 'LAST ELEMENT!';
}

$keys = array_keys($array);
for ($i = 0, $l = count($array); $i < $l; ++$i) {
    $key = $array[$i];
    $value = $array[$key];
    $isLastItem = ($i == ($l - 1));
    // do stuff
}

// or this way...

$i = 0;
$l = count($array);
foreach ($array as $key => $value) {
    $isLastItem = ($i == ($l - 1));
    // do stuff
    ++$i;
}

foreach($array as $key=>$value) 
{ 
    echo $value;
    if($key != count($array)-1) { echo ", "; }
}

$first = true;
foreach($array as $key => $value) {
    if ($first) {
        $first = false;
        // Do what you want to do before the first element
        echo "List of key, value pairs:\n";
    } else {
        // Do what you want to do at the end of every element
        // except the last, assuming the list has more than one element
        echo "\n";
    }
    // Do what you want to do for the current element
    echo $key . ' => ' . $value;
}

$first = true;
foreach($array as $key => $subArray) {
    if ($first) {
        $string = "List of key => value array pairs:\n";
        $first = false;
    } else {
        echo "\n";
    }

    $string .= $key . '=>(';
    $first = true;
    foreach($subArray as $key => $value) {
        if ($first) {
            $first = false;
        } else {
            $string .= ', ';
        }
        $string .= $key . '=>' . $value;
    }
    $string .= ')';
}
echo $string;

List of key => value array pairs:
key1=>(v1_key1=>v1_val1, v1_key2=>v1_val2)
key2=>(v2_key1=>v2_val1, v2_key2=>v2_val2, v2_key3=>v2_val3)
key3=>(v3_key1=>v3_val1)

foreach ( $array as $key => $a ) {
    if ( end( array_keys( $array ) ) == $key ) {
        echo "Last element";
     } else {
        echo "Just another element";
     }
}  

$data = ['lorem', 'ipsum', 'dolor', 'sit', 'amet'];

$result = "";
foreach($data as $value) {
    $result .= (next($data)) ? "$value, " : $value;
}

print $result;

$given_array = array('column1'=>'value1',
                     'column2'=>'value2',
                     'column3'=>'value3');

$glue = '';
foreach($given_array as $column_name=>$value){
    $where .= " $glue $column_name = $value"; //appending the glue
    $glue   = 'AND';
}
echo $where;

column1 = value1 AND column2 = value2 AND column3 = value3

$array = array(
    'First',
    'Second',
    'Third',
    'Last'
);

foreach($array as $key => $value)
{
    if(end($array) === $value)
    {
       echo "last index!" . $value;
    }
}

for ($i=0;$i<count(arr);$i++){
    $i == count(arr)-1 ? true : false;
}

end(arr);

arr[1];

end( $elements );
$endKey = key($elements);
foreach ($elements as $key => $value)
{
     if ($key == $endKey) // -- this is the last item
     {
          // do something
     }

     // more code
}

$first = true;
foreach ( $items as $item ) {
    $str = ($first)?$first=false:", ".$item;
}

foreach ($array as $key => $value) {

  $class = ( $key !== count( $array ) -1 ) ? " class='not-last'" : " class='last'";

  echo "<div{$class}>";
  echo "$value['the_title']";
  echo "</div>";

}

foreach($items as $idx => $item) {
    if (!isset($items[$idx+1])) {
        print "I am last";
    }
}

$array  = array("dog", "rabbit", "horse", "rat", "cat");
foreach($array as $index => $animal) {
    if ($index === array_key_first($array))
        echo $animal; // output: dog

    if ($index === array_key_last($array))
        echo $animal; // output: cat
}

$arr = range(1, 10);

$end = end($arr);
reset($arr);

while( list($k, $v) = each($arr) )
{
    if( $n == $end )
    {
        echo 'last!';
    }
    else
    {
        echo sprintf('%s ', $v);
    }
}

   $rev_array = array_reverse($array);

   echo array_pop($rev_array);

<?php
 $week=array('one'=>'monday','two'=>'tuesday','three'=>'wednesday','four'=>'thursday','five'=>'friday','six'=>'saturday','seven'=>'sunday');
 $keys = array_keys($week);
 $string = "INSERT INTO my_table ('";
 $string .= implode("','", $keys);
 $string .= "') VALUES ('";
 $string .= implode("','", $week);
 $string .= "');";
 echo $string;
?>

$numItems = count($arr);
$i=0;
$firstitem=$arr[0];
$i++;
while($i<$numItems-1){
    $some_item=$arr[$i];
    $i++;
}
$last_item=$arr[$i];
$i++;

    $result = $where = "";
    foreach ($conditions as $col => $val) {
        $result = $where .= $this->getAdapter()->quoteInto($col.' = ?', $val);
        $where .=  " AND ";
    }
    return $this->delete($result);

$table = array( 'a' , 'b', 'c');
$it = reset($table);
while( $it !== false ) {
    echo 'all loops';echo $it;
    $nextIt = next($table);
    if ($nextIt === false || $nextIt === $it) {
            echo 'last loop or two identical items';
    }
    $it = $nextIt;
}

Find the last element of an array while using a foreach loop in PHP

$numItems = count($arr);
$i = 0;
foreach($arr as $key=>$value) {
  if(++$i === $numItems) {
    echo "last index!";
  }
}    

Determine the first and last iteration in a foreach loop in PHP?

1: First iteration 
6: Last iteration

1: First iteration 
6: :ast iteration

1: First iteration 
6: Last iteration

Determine the First and Last Iteration in a Foreach Loop in PHP

for($array as $key => $value){
    // Add code here
}

$array  = array("dog", "rabbit", "horse", "rat", "cat");
$x = 1;
$length = count($array);

foreach($array as $animal){
    if($x === 1){
        //first item
        echo $animal; // output: dog
    }else if($x === $length){
        echo $animal; // output: cat
    }
    $x++;
}

$array  = array("dog", "rabbit", "horse", "rat", "cat");
foreach($array as $index => $animal) {
    if ($index === array_key_first($array))
        echo $animal; // output: dog

    if ($index === array_key_last($array))
        echo $animal; // output: cat
}

5 Ways To Loop Through An Array In PHP

        $CodeWallTutorialArray = ["Eggs", "Bacon", "HashBrowns", "Beans", "Bread", "RedSauce"];
        $arrayLength = count($CodeWallTutorialArray);
        
        $i = 0;
        while ($i < $arrayLength)
        {
            echo $CodeWallTutorialArray[$i] ."<br />";
            $i++;
        }

Eggs
Bacon
HashBrowns
Beans
Bread
RedSauce

        $CodeWallTutorialArray = ["Eggs", "Bacon", "HashBrowns", "Beans", "Bread", "RedSauce"];

        for ($i = 0; $i < count($CodeWallTutorialArray); $i++)  {
            echo $CodeWallTutorialArray[$i] ."<br />";
        }

Eggs
Bacon
HashBrowns
Beans
Bread
RedSauce

       $foodArray = ["Eggs", "Bacon", "HashBrowns", "Beans", "Bread"];

        foreach ($foodArray as $food)  {
            echo $food ."<br />";
        }

Eggs
Bacon
HashBrowns
Beans
Bread

       $foodArray = ["Eggs", "Bacon", "HashBrowns", "Beans", "Bread"];
        $i = 0;
        
        do {
            echo $foodArray[$i] . "<br />";
            $i++;
        }
        while ($i < count($foodArray));

Eggs
Bacon
HashBrowns
Beans
Bread

        $programmingLanguagesArray = ["PHP", "C++", "C#", "Python", "Java"];
        
        $arrObject = new ArrayObject($programmingLanguagesArray);
        $arrayIterator = $arrObject->getIterator();

        while( $arrayIterator->valid() )
        {
            echo $arrayIterator->current() . "<br />";
            $arrayIterator->next();
        }

PHP
C++
C#
Python
Java

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