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With PHP I need to add all the digits in a number.
Example : if I have 142 it will be 1+4+2 = 7
its should be 1 to 9 if not its should plus again 11 will be 1+1 = 2
Here is a function, based on Dave Chen's answer :
function sumDigits($input) {
$sum = array_sum(str_split($input));
if($sum > 9) {
$sum = sumDigits($sum);
}
return $sum;
}
This code :
echo sumDigits("1239");
Outputs: 6
1 + 2 + 3 + 9 = 15 = 1 + 5 = 6
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I need your help to get the position of duplicate or same elements in an array.
For example
$arr =[6,5,3,7,40,45,7,6,3,32,86,40,5,3,7,40];
Result
6 = 0,7
5 = 1,11
3 = 2,8
7 = 3,6,14
40 = 4,11,15
45 =5 and so on.
One simple approach:
<?php
$arr =[6,5,3,7,40,45,7,6,3,32,86,40,5,3,7,40];
$pos = array();
foreach($arr as $k => $v) {
$pos[$v][] = $k;
}
foreach($pos as $k => $v) {
echo $k."=".implode(',', $v)."<br>";
}
?>
Result:
6=0,7
5=1,12
3=2,8,13
7=3,6,14
40=4,11,15
45=5
32=9
86=10
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How to replace 200 numbers with an image?
This example :
For example
When user have 200 numbers He takes 1 image
When user have 830 He take 4 image
what php code I need it?
Sorry but I havn't Any code
Thanks in advance
$votes = 10334;
$starCount = intval($votes/ 200);
$starCount = $starCount > 5 ? 5 : $starCount; //if maximum 5 stars
$a = 1;
$starsString = '';
for ($a; $a <= $starCount; $a++) {
$starsString .= '⛤'; // or '<img src="https://i.stack.imgur.com/EhAy4.gif" alt="here">'
}
echo $starsString;
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I have a math function, for example:
string = "3x+6.5y-23z"
I need to extract the function and get x, y, z; give value x = 6, y = 7, z = 8; and solve.
you can do it like this
<?php
$x = 6;
$y = 7;
$z = 8;
echo $string = 3*$x+6.5*$y-23*$z;
?>
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How to display total number from start to end in a range in php .Each time number will increase by 10 .
For example total number is 35
Then number will display this way :
1 to 10
11 to 20
21 to 30
31 to 35
$num=35;
for($i=1;$i<$num;$i=$i+10)
{
$j=$i+9;
if($j>$num)
$j=$num;
echo $i.' to '. $j;
}
try
$num=35;
for($i=1;$i<=$num;$i++) {
if($i %10 == 0)
echo $i.'<br>';
else
echo $i;
}
will output :-
12345678910
11121314151617181920
21222324252627282930
3132333435
Use a for loop like this
for($x = 1; $x <= 35, $x += 10){
echo $x . " to " . $x+9;
}
This will work i hope.
Thanks
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I need to divide an integer value into 3 parts using php
for eg: I have a value 9 the answer is like 3 + 3 + 3
if i have value 10 the ans like 3 + 3 + 4 or something like that
You can use a modulus function.
<?php
$yourInt=10;
$remainder=$yourInt % 3;
$third=floor($yourInt/3);
$lastBit=$third+$remainder;
echo "The numbers are $third + $third + $lastBit.";
?>
Output:
The numbers are 3 + 3 + 4.
If you have a value that is >= 3 you can do the following:
$number = 10;
$number1and2 = floor($number/3);
$number3 = $number - (2*$number1and2);
$num = 11;
$d = [$num/3,$num/3,$num/3];
$round = array_map('round', $d);
list($first, $second, $third) = $round;
$round = (is_float($num/3)) ? $num-(round($num/3)*3) : 0;
echo $first.' '.$second.' '.($third += (is_float($num/3)) ? $num-(round($num/3)*3) : 0);