<?php
$arr1 = preg_split("/[;]+/", $data);
foreach ($arr1 as $arr1 => $value) {
echo '<td>';
echo $value;
echo '</td>';
if (key($value)==6)
{
echo '</tr>';
echo '<tr>';
}
}
?>
This is code I am using but the key function is not returning anything.
I want to get return the position of $value and want to excecute some code if it is divisible by 6.
How can I get the position of $value in $arr1?
You must use a different variable than $arr1 to store the key.
Use this instead, where $key will be the key:
<?php
$arr1 = preg_split("/[;]+/", $data);
foreach ($arr1 as $key => $value) {
echo '<td>';
echo $value;
echo '</td>';
if ($key==6)
{
echo '</tr>';
echo '<tr>';
}
}
?>
You can following example to get position of particular $value in array.
<?php
$value = 'green';
$array = array(0 => 'blue', 1 => 'red', 2 => 'green', 3 => 'red');
$key_of_particular_value = array_search($value, array);
//After perform above operation $key_of_particular_value = 2
//Below statement will check whether key is divided by 6 or not
if(($key_of_particular_value % 6) == 0)
{
//perform your operation
}
?>
To know more please refer following link-
http://php.net/manual/en/function.array-search.php
You have used same variable $arr1 for key and original array, try using another variable to get key(index)
foreach ($arr1 as $key => $value) {
Related
I have an array like this:
$aMyArray = array(
"bmw"=>"user1",
"audi"=>"user2",
"mercedes"=>"user3"
);
And I only want to show the first two elements bmw=>user1 and audi=>user2.
But I want it by using a foreach loop.
If you want the first 2 by name:
Using in_array (documentation) is what you looking for:
$aMyArray = array("bmw"=>"user1", "audi"=>"user2", "mercedes"=>"user3");
$valuesToPrint = array("bmw", "audi");
foreach($aMyArray as $key => $val) {
if (in_array($key, $valuesToPrint))
echo "Found: $key => $val" . PHP_EOL;
}
If you want the first 2 by index use:
init index at 0 and increment in each iteration as:
$aMyArray = array("bmw"=>"user1", "audi"=>"user2", "mercedes"=>"user3");
$i = 0;
foreach($aMyArray as $key => $val) {
echo "Found: $key => $val" . PHP_EOL;
if (++$i > 1)
break;
}
$counter = 1;
$max = 2;
foreach ($aMyArray as $key => $value) {
echo $key, "=>", $value;
$counter++;
if ($counter === $max) {
break;
}
}
It is important to break execution to avoid arrays of any size looping until the end for no reason.
<?php
$aMyArray = array(
"bmw"=>"user1",
"audi"=>"user2",
"mercedes"=>"user3"
);
reset($aMyArray);
echo key($aMyArray).' = '.current($aMyArray)."\n";
next($aMyArray);
echo key($aMyArray).' = '.current($aMyArray)."\n";
Easiest way:
$aMyArray=array("bmw"=>"user1","audi"=>"user2","mercedes"=>"user3");
$i=0;
foreach ($aMyArray as $key => $value) {
if($i<2)
{
echo $key . 'and' . $value;
}
$i++;
}
I know you're asking how to do it in a foreach, but another option is using array travelling functions current and next.
$aMyArray = array(
"bmw"=>"user1",
"audi"=>"user2",
"mercedes"=>"user3"
);
$keys = array_keys($aMyArray);
//current($array) will return the value of the current record in the array. At this point that will be the first record
$first = sprintf('%s - %s', current($keys), current($aMyArray)); //bmw - user1
//move the pointer to the next record in both $keys and $aMyArray
next($aMyArray);
next($keys);
//current($array) will now return the contents of the second element.
$second = sprintf('%s - %s', current($keys), current($aMyArray)); //audi - user2
You are looking for something like this
$aMyArray = array(
"bmw"=>"user1",
"audi"=>"user2",
"mercedes"=>"user3"
);
foreach($aMyArray as $k=>$v){
echo $v;
if($k=='audi'){
break;
}
}
My array which is dynamic, formed as
$exam = explode(',',$row['exam']);
For example result is:
$exam = array("First-Term","Second-Term", "Third-Term");
We can get index and value as this
foreach (array_values($exam) as $i => $value) {
echo "$i: $valuen";
echo "//And its mark";
}
But, how can I break loop to each index. I have to fetch as follow
First-Term
//And its mark
Second-Term
// And its mark
Third-Term
// And its mark
But while using foreach loop, I am getting
First-Term
Second-Term
Third-Term
//And its mark
//And its mark
//And its mark
How to break loop to each index, after that we use same code in every index. I'm simply try to assign each marks to each term
$exam[0]{
//here is $value
//rest of the code, same code to every index
}
$exam[1]{
//here is $value
//rest of the code, same code to every index
}
$exam[2]{
//here is $value
//rest of the code, same code to every index
}
$exam[...]{
//
}
You should make two arrays for team and marks and then parse these two arrays in the same foreach loop like this
$team = array('a', 'b', 'c', 'd' );
$marks = array('1', '2', '3', '4' );
foreach(array_combine($team, $marks) as $t => $m) {
echo $t . "<br>" .$m . "<br><br>"; //$t for team and m for marks
echo "<br/>";
}
In this way you can parse your different data in a paralell way
From the looks of what you are doing, you are using two foreach loops with different output...
This one:
$exam = array("First-Term","Second-Term", "Third-Term");
foreach (array_values($exam) as $i => $value) {
echo "{$value}<br>";
echo "// And its mark<br><br>";
}
Will output this:
First-Term
//And its mark
Second-Term
// And its mark
Third-Term
// And its mark
While this loop:
$exam = array("First-Term","Second-Term", "Third-Term");
foreach (array_values($exam) as $i => $value) {
echo "{$value}<br>";
}
foreach (array_values($exam) as $i => $value) {
echo "// And its mark<br>";
}
Will output this:
First-Term
Second-Term
Third-Term
// And its mark
// And its mark
// And its mark
Will update this answer once I have more details.
Code tested: https://3v4l.org/RDvYN
I would build an array with everything in place and then start to display it:
$exam = array("First-Term","Second-Term", "Third-Term");
$marks = array(1, 2, 3);
$result = array();
foreach (array_values($exam) as $idx => $value) {
$result[] = array(
"exam" => $value,
"mark" => $marks[$idx]
);
}
foreach ($result as $value) {
echo $value['exam'] . "\n";
echo $value['mark'] . "\n\n";
}
i dont want to echo the last two values in an associative array, couldn's figure it out, please help.
foreach($_POST as $key => $value){
echo $value;
}
This echoes all the values, i want to echo all but the last 2.
Just count the loops and dont print the value in the last two loops.
$i = 0;
foreach($_POST as $key => $value) {
$i++;
if($i != count($_POST) && $i != count($_POST)-1) {
echo $value;
}
}
It should work to slice the array before you loop it.
<?php
$newArray = array_slice( $_POST, 0, count($_POST)-2);
foreach( $newArray AS $key => $value ) {
echo $value;
}
If you want to keep your $key value, then set the 4th parameter to true to "preserve keys":
http://php.net/manual/en/function.array-slice.php
Maybe this is just an exercise, but I do want to note, in addition, that relying on the exact order of your POST'd elements sounds like a bad design idea that could lead to future problems.
I'd rather do this:
$a = array('a' => 'q','s' => 'w','d' => 'e','f' => 'r');
$arr_count = count($a) - 2;
$i = 1;
foreach($a as $k => $val){
echo $k.' - '.$val.PHP_EOL;
if ($i == $arr_count) break;
$i++;
}
Another alternative solution:
<?php
$tot=count($_POST)-2;
while ($tot--) {
// you can also retrieve the key using key($_POST);
echo current($_POST);
next($_POST);
}
I have an associative array in a foreach like this:
foreach ($mArray as $aValue) {
foreach ($aValue as $key => $value) {
echo $html->find($key,$value)
}
}
It gives me this output:
bobby
johnny
Now I would like to get the last character which is y so I did:
echo substr($TheString, -1);
But this gives me: yy because its a multi-dimensional array so it gives me the last characters in each array. What can I do to get the last character on the page y (..and delete it)?
$last_char = '';
foreach ($mArray as $aValue) {
foreach ($aValue as $key => $value) {
if(substr($html->find($key,$value), -1) == 'y'){
$last_char = $html->find($key,$value);
}
}
}
echo $last_char;
This seems to work for me
echo substr_replace($TheString,"",-3);
Try This :
echo substr($TheString, -1, 1);
OR replace a string Removing y
$s="abcdey";
$m=substr($s,0,-1);
echo substr_replace($s,$m,0)
Try This :
$array = array(
"foo" => "jonny",
"bar" => "monny",
);
$i=0;
$con=count($array);
foreach($array as $key => $value)
{
$i++;
if($i==$con)
{
$s=$value;
$m=substr($value,0,-1);
$value=substr_replace($s,$m,0);
echo "Removed Y from array of last item =".$m."</br>";
}
echo $value."</br>";
}
foreach doesn't fetch end of array. I want to use end of that in another method:
$array = array(
"Language programings"=>array("php" => 100,"js" => 200),'html'=>12);
foreach ($array as $kk=>$val1)
{
echo $kk.'<br/>';
foreach ($val1 as $key=>$val2)
{
if (! end(array_keys($array)))
echo $val2;
}
echo end(array_value);//must be show 12
}
If I understand correctly, in your if() statement, you're attempting to see if the pointer is at the end of the array. Unfortunately, in this case, end() will never be false and so the line echo $val2; won't ever execute.
Try replacing
if (! end(array_keys($array)))
with
if ($key <> end(array_keys($array))
also your last line should be:
echo end(array_values($array));
Try using below code:
$array = array("Language programings"=>array("php" => 100,"js" => 200),'html'=>12);
foreach($array as $key1 => $val1){
if(is_array($val1)){
echo $key1.'<br/>';
foreach($val1 as $key2 => $val2){
if(is_array($val2)){
foreach($val2 as $k => $v){
echo $v.'<br/>';
}
} else {
echo $val2.'<br/>';
}
}
}
}
echo end(array_values($array));
The result will be:
Language programings
100
200
12