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Programes logic

>> Fibonacci series programe.

$f0 = 0;
$f1 = 1;
echo $f0."<br/>";
echo $f1."<br/>";
for($i=2; $i<10; $i++) {
    $f2 = $f1 + $f0;
    echo $f2."<br/>";
    $f0 = $f1;
    $f1 = $f2;
}

Output: 0 1 1 2 3 5 8 13 21 34

OR

$f0 = 0;
$f1 = 1;
for($i=0; $i<10; $i++) {
    $f2 = $f1 + $f0;
    echo $f0."<br/>";
    $f0 = $f1;
    $f1 = $f2;
}

OR

$i = $n = $t1 = 0;
$t2 = 1;
$nextTerm = 0;
$n = 10;
echo "Fibonacci Series: <br/><br/>";
for ($i = 1; $i <= $n; ++$i) {
    echo $t1.' ';
    $nextTerm = $t1 + $t2;
    $t1 = $t2;
    $t2 = $nextTerm;
}

Output: 0 1 1 2 3 5 8 13 21 34


>> Prime number programe?

<?php
for($i=1;$i<=100;$i++) { $a = 0; for($j=1;$j<=$i;$j++) { if($i%$j == 0) { $a++; } } if($a == 2){ echo "Prime number is ".$i."<br>"; } } //Output: 2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71 73 79 83 89 97


>> Diamond pattern print?


<?php
for ($i = 1; $i <= 4; $i++) {
for ($j = (4 - $i); $j >= 1; $j--) { echo " "; }

for ($j = $i; $j >= 1; $j--) { echo "*"; }

for ($j = 1; $j < $i; $j++) { echo "*"; }

echo "\r";
}

 for ($i = 3; $i >= 1; $i--) {
for ($j = (4 - $i); $j >= 1; $j--) { echo " "; }
for ($j = $i; $j >= 1; $j--) { echo "*"; }
for ($j = 1; $j < $i; $j++) { echo "*"; }
echo "\r";
}


>> 90 degree triangle print

<?php
for ($i = 1; $i <= 4; $i++) { for ($j = (4 - $i); $j >= 1; $j--) { echo " "; } for ($j = $i; $j >= 1; $j--) { echo "*"; } echo "\r"; }


>> Program to create visiting card using gd library in php?



>> Month last day salary if not Sat, Sun if yes than salary on Friday?

<?php
ini_set("display_error","1");

error_reporting(E_ALL);

$mysqli = new mysqli('localhost','root','','test');

if($mysqli->connect_errno){ 

 echo "error".$mysqli->connect_error;

}

$start = $month = strtotime('2017-12-01');

$end = strtotime('2018-12-01');

while($month <= $end) {

    echo $day = date("D", strtotime(date('Y-m-t', $month)));
    echo $date = date('Y-m-t', $month);

    if($day == 'Sun'){
        $date = date('Y-m-d', strtotime('-2 day', strtotime($date)));
    }

    if($day == 'Sat'){
        $date = date('Y-m-d', strtotime('-1 day', strtotime($date)));
    }

    echo "<br>Salary Date For Employee is ". $date."<br>";
    $month = strtotime("+1 month", $month);

    $sql = "INSERT INTO  `test`.`employee` (`id` ,`name` ,`salary` ,`salarydate`) VALUES (NULL ,  'amit',  '1000',  '$date')";

    //$res = $mysqli->query($sql);


}







>> Xento machine test print count of repeated value without using an array function?


<?php
$array = array(5, 6, 5, 4, 2, 1, 4); function countArrayElement($arrintValue) { 
$result = array(); foreach($arrintValue as $item) { if(isset($result[$item])) { $result[$item]++; }else { $result[$item] = 1; } } return $result; } $arrayCount = countArrayElement($array); print_r($arrayCount); //Desired Output Array ( [5] => 2 [6] => 1 [4] => 2 [2] => 1 [1] => 1 )






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