I want to make a loop that works in 2 ways , if period is anynumber but 13 and it's multiplications , it will call the last income I had , if not it should make the equations you see below , any idea how to ?
for ($i=1; $i <= $period ; $i++) {
if ($i+=13) {
echo round($income=$income*(1+($rowage/100))). "<br>";
} else
{
echo $income. "<br>";
}
}
It is called mutiple of 13, and you can use modulos:
for ($i=1; $i <= $period ; $i++) {
if ($i%13==0) {
echo round($income=$income*(1+($rowage/100))). "<br>";
} else
{
echo $income. "<br>";
}
}
$i%13==0 means if division of i by 13 gives 0, which should be true if i is multiple of 13.
Related
I am running into a problem rendering a star rating and was hoping I can get some extra eyeballs on my problem. I have the normal rating working just fine with whole numbers but I am struggling to display the half star. For example I created a service that provides me with a rating 0-5 so I get a value like 2.5, 3 or 5 etc...
Before I go and create a switch case and create an svg for each variation I was hoping to get a little a pointer. Below is what I have currently, any tips would be greatly appreciated.
<?php
for ($i = 1; $i <= $totalRating; $i++) {
if($starRating < $i ) {
echo "<img src=\"/icons/star-empty.svg\">";
}
else {
echo "<img src=\"/icons/star.svg\">";
}
}
?>
Ideally I would like to add a condition at the end of the loop and check for the half and echo "";
There is probably an easier way to do it but this works, checks if $starRating is a float and then rounds it up and checks against $i to place the half star in the correct position.
<?php
$totalRating = 5;
$starRating = 2.5;
for ($i = 1; $i <= $totalRating; $i++) {
if($starRating < $i ) {
if(is_float($starRating) && (round($starRating) == $i)){
echo "<img src=\"/icons/star-half.svg\">";
}else{
echo "<img src=\"/icons/star-empty.svg\">";
}
}else {
echo "<img src=\"/icons/star.svg\">";
}
}
?>
You can verify if the value of $starRating is an integer, doing something like this (considering only half values):
<?php
for ($i = 1; $i <= $totalRating; $i++) {
if ($starRating < $i ) {
echo "<img src=\"/icons/star-empty.svg\">";
} elseif(is_int($starRating) === false) {
echo "<img src=\"/icons/star_half.svg\">";
} else {
echo "<img src=\"/icons/star.svg\">";
}
}
?>
If you want to show stars with a more precise value you can create images with the float values in the name, like "star-3.svg" (representing a .3 float value, and do something like this:
<?php
for ($i = 1; $i <= $totalRating; $i++) {
if ($starRating < $i ) {
echo "<img src=\"/icons/star-empty.svg\">";
} elseif(is_int($starRating) === false) {
echo "<img src=\"/icons/star-" . floatval($starRating)) . ".svg\">";
} else {
echo "<img src=\"/icons/star.svg\">";
}
}
?>
But in this case you need to take care to only receive float values with one number (2.2, 3.4, etc.).
I hope it helps...
i have this code .
echo "<br>";
$start = 1;
$angka = $_POST[angka];
$a = $angka;
for($i=$start; $i<=$angka; $i++) {
for($j=$start;$j<=$angka;$j=$j+2){
echo $i;
if($j < $angka) echo $a;
}
$a--;
echo '<br>';
}
Reference: Print Looping for dynamic row php
This is not my expecting result .
First i want the result like this .
-2-4-
1-3-5
-2-4-
1-3-5
-2-4-
The rule is Number of rows and columns follow the number of numbers declared.If the declaration of the number 5, then the results will be displayed are 5 rows and 5 columns like the example above.
i think this code is working
<?php
$_POST['angka'] = 5;
$angka = $_POST['angka'];
for($i=1; $i<=$angka; $i++) {
for($j=1;$j<=$angka;$j++){
if($i%2 == 1) {
if($j%2 == 0) {
echo $j;
} else {
echo '-';
}
} else {
if($j%2 == 0) {
echo '-';
} else {
echo $j;
}
}
}
echo '<br>';
}
Result:
-2-4-
1-3-5
-2-4-
1-3-5
-2-4-
I have the following bit of code and for some reason in the first WHILE loop the first value of $actor_list (when $i = 0) does not display. If I simply echo $actor_list[0] then it displays fine, but in the loop it will not display. I merely get [td][/td] as the output. The remaining values of the array display fine.
Also the line
echo '</tr><tr> </br>';
is not displaying.
What am I missing here? The value of $num_actors is an even number in my test scenario so there doesn't seem to be a reason for the above echo line to be skipped.
$actor_list = explode(" ", $actors);
$num_actors = count($actor_list);
if ($num_actors <= 6) {
foreach ($actor_list as $actor) {
echo '[td]'.$actor.'[/td] </br>';
}
} elseif ($num_actors <= 12) {
if ($num_actors % 2 == 0) {
$half_actors = $num_actors / 2;
while ($i <= ($half_actors - 1)) {
echo '[td]'.$actor_list[$i].'[/td] </br>';
$i++;
}
echo '</tr><tr> </br>';
while ($i <= $num_actors) {
echo '[td]'.$actor_list[$i].'[/td] </br>';
$i++;
}
}
}
You're not initialising the variable $i to 0, which means it will be set to 'null' and thus not reference the 0th index of the array; but when it's then incremented its value will become 1.
Note: [..] Decrementing NULL values has no effect too, but incrementing them results in 1.
See: http://php.net/manual/en/language.operators.increment.php
Try adding:
$i = 0;
before the if statement.
Made a few changes.
This is working for me.
Try it out.
<?php
$actor_list = 'act1 act2 act3 act4 act5 act6';
$actors = explode(" ", $actor_list);
$num_actors = count($actor_list);
//debug
//echo "<pre>";
//print_r($actor_list);
//echo "</pre>";
echo "<table>";
if ($num_actors <= 6) {
foreach ($actors as $actor) {
echo '<tr><td>'.$actor.'</td></tr>';
}
} elseif ($num_actors <= 12) {
if ($num_actors % 2 == 0) {
$half_actors = $num_actors / 2;
while ($i <= ($half_actors - 1)) {
echo '<tr><td>'.$actor_list[$i].'</td></tr>';
$i++;
}
while ($i <= $num_actors) {
echo '<tr><td>'.$actor_list[$i].'</td></tr>';
$i++;
}
}
}
echo "</table>";
?>
I have a value as a number. For instance, 502.
I want to write a php if statement that will display some text if the value is lesser or greater than certain numbers, or between a range.
E.g.
number is 502, text will say: "Between 500-600"
number is 56, text will say: "Between 0-60"
etc.
So far I have this:
<?php $count=0;?>
<?php $board = getUserBoard($userDetails['userId']);?>
<?php if(is_array($board)):?>
<?php $boardCount = count($board);?>
<?php foreach($board as $key=>$value):?>
<?php
$boardPin = getEachBoardPins($value->id);
$count = $count + count($boardPin);
?>
<?php endforeach?>
<?php endif?>
And that gives me a number:
<?php echo $count;?>
I have tried writing...
<?php if(($count)): => 500 ?>
Over 500
<?php endif ?>
But I keep running into errors.
I'd like to create a list if possible with elseif statements denoting various number ranges.
E.g.
0-50, 51-250, 251-500 etc.
Can anyone help me?
Thanks.
The sanest, neatest and most widely used syntax for if conditions in PHP is:
if($value >=500 && $value <=600 )
{
echo "value is between 500 and 600";
}
if ($count >= 0 && $count < 100) {
echo 'between 0 et 99';
} elseif ($count < 199) {
echo 'between 100 and 199';
} elseif { ...
}elseif ($count < 599) {
echo 'between 500 and 599';
} else {
echo 'greater or equal than 600';
}
I wrote something like this a few years back (might be a better way to do it):
function create_range($p_num, $p_group = 1000) {
$i = 0;
while($p_num >= $i) {
$i += $p_group;
}
$i -= $p_group;
return $i . '-' . ($i + $p_group - 1);
}
print 'The number is between ' . create_range(502, 100) . '.';
It'll say 500-599, but you can adjust it to your needs.
I'm not sure what you need, but here is what I understand you ask:
function getRange($n, $limit = array(50, 250, 500)) { // Will create the ranges 0-50, 51-250, 251-500 and 500-infinity
$previousLimit = 0;
foreach ($limits as $limit) {
if ($n < $limit) {
return 'Between ' . ($previousLimit + 1) . ' and ' . $limit; //Return whatever you need.
}
$previousLimit = $limit;
}
return 'Greater than ' . $previousLimit; // Return whatever you need.
}
echo getRange(56); // Prints "Between 51 and 250"
echo getRange(501); // Prints "Greater than 500"
echo getRange(12, array(5, 10, 15, 20)); // Prints "Between 11 and 15"
function getRange($number){
$length=strlen($number);
$length--;
$r1=round($number,-$length);
if ($r1>$number){
$r2=$r1-pow(10,$length);
return ''.$number.' value is between '.$r2.'-'.$r1;
}
else {
$r2=$r1+pow(10,$length);
return ''.$number.' value is between '.$r1.'-'.$r2;
}
}
Try this.
I am just a beginner in PHP. I have tried to write a program for prime numbers, but the result is not correct. I couldn't find the error. How can I correct this? Here is my code:
<?php
$n=15;
for($i=2; $i<=$n; $i++)
{
echo "<br />";
for($j=2; $j<=$i-1; $j++)
{
$k=$i%$j;
if($k==0)
{
break;
}
else echo $i."is prime";
break;
}
}
?>
Try this:
<?php
$n=15;
for($i=2; $i<=$n; $i++)
{
$k = 1; //assume that it is prime
for($j=2; $j<$i; $j++) //if $i is 2, then it won't enter the loop as it will not match the condition ($j<$i)
{
$k=$i%$j;
if($k==0)
break; //if not prime, $k will be set as 0. So, break.
}
if($k!=0) // if $k <> 0, then it is prime
echo "<br />" . $i." is prime";
}
?>
Edit
Updated the code to take care of the "2"
Try this:(whitout using loop)
function is_prime($p) {
return ($p > 1) && (($p%2 >= 1) && ($p%3 >= 1) && ($p%5 >= 1)) || in_array($p, [2,3,5]);
}
echo is_prime(15);
You are breaking the loop the first time it's run by calling this basically:
if (something) {
break;
} else {
break;
}
it will break no matter what. you need to take out the last break.
Well, your code is kind of confusing to understand; at first glance it seems as if it's trying to determine primality by checking every divisor up to N, but you've got that outer-loop going on which I didn't see at first... Oh boy.
If you're just trying to figure out if some number N is prime, the following should work:
$n = 15
$prime = true;
for ($i = 2; $i < sqrt($n); $i++) {
if ($n % $i == 0) {
$prime = false;
break;
}
}
echo $n . " is " . ($prime ? "" : "not") . " prime.";
<?php
echo "TEST\r\n";
$n=15;
for($i=2; $i<=$n; $i++)
{
echo "I= $i \r\n";
for($j=2; $j<=$i-1; $j++)
{
$k = $i%$j;
if($k==0)
{
break;
} else {
echo $i."is prime \r\n";
}
break;
}
}
I think your secod for loop is incorrect.
for($i=2; $i<=$n; $i++) {
echo "<br />";
for($j=2; $j<=$i-1; $j++) {
...
The first value for $j is 2. And for the first time, the first value for $i is 2 again. Now, look at your second for loop code.
It will be like this at the first time:
for($j=2; $j<=2-1; $j++) ... // for($j=2; $j<=1; $j++)
And this condition is not valid at all: 2<=1