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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 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 $starsString;
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For example: A = 2, B = 4 & C = 2 then output should be uniqueNumber(A, B, C) = 4
if ($A==$B)
{
return $C;
}
if ($A==$C)
{
return $B;
}
return $A;
This should be a simple logic answer and you can either go with direct comparisons but that might be too hectic in case of more than 3 arguments.
You can try this out as well:
$num_arr = [$a,$b,$c];
for($i=0;$i<count($num_arr)-1; $i++)
{
if(!in_array($num_arr[$i],array_merge(array_slice($num_arr,0,$i),array_slice($num_arr,$i+1))))
return $num_arr[$i];
}
Or simply like this:
$num_arr = [$a,$b,$c];
for($i=0;$i<count($num_arr)-1; $i++)
{
$temp = $num_arr;
unset($temp[$i]);
if(!in_array($num_arr[$i],$temp))
return $num_arr[$i];
}
Tried implementing a more generic approach.
Hope it helps.
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If i have a loop for example
for ($a=1; $a<6; $a++)
Is it possible to say for the first loop if another variable like $b is the same as one of the other numbers that will come like 2, 3, 4 or 5.
And what if i have a word split, so every letter is a variable like this:
$letter1 = str_split($word)[0];
$letter2 = str_split($word)[1];
$letter3 = str_split($word)[2];
$letter4 = str_split($word)[3];
$letter5 = str_split($word)[4];
How can i check if $a is at 1 in the loop,if it is not letter1 but letter2, 3, 4 or 5?
sure. Just check it against the counter:
for ($a=1; $a<6; $a++){
if ($a===$b){
echo ("b is caught!");
break;
}
}
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Can anyone explain in depth why this outputs 9
here is my code in PHP:
$x = 4;
$x = $x+++$x++;
echo $x;
Execution goes like this:
$x = $x++ + $x++; ($x = 4)
$x = 4 + $x++; ($x = 5)
$x = 4 + 5; ($x = 6)
$x = 9;
For a more detailed answer of a more complex example in Java, see this answer: Incrementor logic
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I am trying to get a number between 1 to 6 with more chances to be close to 1.
i have tried this:
<li>{{Faker\Factory::create()->biasedNumberBetween($min = 10, $max = 20, $function = 'unbiased')}}</li>
What i am trying to do is to generate a number from 1 to 6 rand(1,6); but make the numbers be closer to one as the lower numbers will have more weight than the others.
Something like this ?
<?php
function weightedRand($min, $max, $weightedMax) {
$arr = array();
for($i = 0; $i < 10; $i++) {
$arr[] = rand($min, $weightedMax);
}
$arr[] = rand($min, $max);
return $arr[rand(0,10)];
}
echo weightedRand(1,6, 3);
?>
numbers below 4 will now be more likely than numbers above :)