PHP TASKS

array combine and array merge =>

<?php

$a = array("red","green","blue","orange");
$b = array("yellow","brown","silver","purple");

$c = array("gray","white","black","golden");
$d = array("violet","skyblue","pink","silver");

$e = array_combine($b, $a);
$e2 = array_combine($c, $d);

print_r($e);
echo " ===== ";

print_r($e2);
echo " ===== ";

print_r (array_merge($e, $e2));

// array_combine
// $a = array("red","green","blue","orange");
// $b = array("yellow","brown","silver","purple");

// $c = array("gray","white","black","golden");
// $d = array("violet","skyblue","pink","silver");

// $no = array(4,3,5,6);

// $e = array_combine($no, $a);

// $res = array_combine($no,$e);

// $res2= $res3 = $res4 = $res;
// echo "LEVEL 1 ";
// print_r($res);
// echo " ===== ";

// $flag = array($res, $res2, $res3, $res4);

// // print_r($flag);

// $res = array_combine($no,$flag);
// echo "LEVEL 2 ";
// print_r($res);
// // Level 2 of combine

// echo " ===== ";
// echo " ===== ";

// $res2= $res3 = $res4 = $res;

// $flag = array($res, $res2, $res3, $res4);

// // print_r($flag);

// $res = array_combine($no,$flag);
// echo "LEVEL 3 ";
// print_r($res);
// // Level 3 of combine
// echo " ===== ";
// echo " ===== ";

// $res2= $res3 = $res4 = $res;

// // print_r($res);

// $flag = array($res, $res2, $res3, $res4);

// // print_r($flag);

// $res = array_combine($no,$flag);
// echo "LEVEL 4 ";
// print_r($res);
// Level 4 of combine

?>

arrayfunction.php

<?php

$a = array("red","green","blue");

$b = array_pop($a);

print_r($a);
echo " ===array_pop== ";

print_r($b);
echo " ===== ";

array_push($a, "yellow","orange");
print_r($a);
echo " ==array_push=== ";

// array_reverse($a);
print_r(array_reverse($a));
// var_dump($a);
echo " ===== ";

// array_reverse($a);
$b= array_reverse($a);
print_r($b);
echo $b[0];
echo " ===array_reverse== ";

// array_shift
print_r($a);
array_shift($a);
echo " ";
print_r($a);
echo " ===array_shift== ";

// array_sum :
$aa = array(1,2,3,"l");
print_r(array_sum($aa));
echo " ==array_sum=== ";

// array_combine
$a = array("red","green","blue","orange");
$b = array(4,5,6,7);
$c = array_combine($b, $a);
print_r($c);
echo " ===array_combine== ";

$a = array(array("red","green","blue","orange"),"green","blue","orange");
$b = array(4,5,6,7);
$c = array_combine($b, $a);
print_r($c);
echo " ==array(array==array_combine= ";

// count
$a = array("red","green","blue","orange");
$n = count($a);
echo $n;
echo " ==count=== ";

// array_marge
$a = array("red","green","blue","orange");
$b = array(1,2,3);
$c = array(4,5);
$d = array_merge($a, $b, $c);
print_r($d);
echo " ==array_merge=== ";

// Implode
$a = array("red","green","blue","orange");
$b = implode(", ",$a);
echo $b;
echo " ==implode=== ";

// explode
$as = "Today is our first class in array function";
$ba = explode(" ",$as);
print_r($ba);
echo " ==explode=== ";

// sizeof
$a = array("red","green","blue","orange");
$n = sizeof($a);
echo $n;
echo " ==sizeof=== ";

// Associative sort
$a= array("b"=>20, "a"=>10, "c"=>30, 1=>"saif");
foreach ($a as $key => $value) {
 // code...
 echo "key is ".$key. " and the value is ".$value." ";
}
echo " -----foreach (a as key => value)------ ";
var_dump($a);
echo " ------var_dump----- ";
asort($a);
foreach ($a as $key => $value) {
 // code...
 echo "key is ".$key. " and the value is ".$value." ";
}
echo " -----asort------ ";
arsort($a);
foreach ($a as $key => $value) {
 // code...
 echo "key is ".$key. " and the value is ".$value." ";
}
echo " ------arsort(a);----- ";

ksort($a);
foreach ($a as $key => $value) {
 // code...
 echo "key is ".$key. " and the value is ".$value." ";
}
echo " -----ksort------ ";

krsort($a);
foreach ($a as $key => $value) {
 // code...
 echo "key is ".$key. " and the value is ".$value." ";
}
echo " -----krsort------ ";

$a = array(5,4,6,1,2,7,8,9);
print_r($a);
echo " ------sort----- ";
sort($a);
print_r($a);
echo " -------rsort---- ";
rsort($a);
print_r($a);
echo " ----------- ";

?>

array in array =

<?php

$a = array(1,2,3,array(5,6,7),8,9);
print_r($a);
echo " ";
print_r($a[3]);
?>

matrix addition and diagonal print =

<?php

$a = array(array(1,2,3),array(4,5,6),array(7,8,9));
echo "Matrix of A is: -------- ";
for($i=0; $i<3; $i++){
 for($j=0; $j<3; $j++){
 echo $a[$i][$j]." | ";
 }
 echo " -------- ";
}
echo " --------";

$b = array(array(1,2,3),array(4,5,6),array(7,8,9));
echo " Matrix of B is: -------- ";
for($i=0; $i<3; $i++){
 for($j=0; $j<3; $j++){
 echo $b[$i][$j]." | ";
 }
 echo " -------- ";
}
echo " --------";

$add = array();
$diagonal = 0;
for($i=0; $i<3; $i++){
 for($j=0; $j<3; $j++){
 $add[$i][$j] = $a[$i][$j] + $b[$i][$j];
 if($i == $j)
 $diagonal += $add[$i][$i];
 }
}

echo " Matrix of Add is: ----------- ";
for($i=0; $i<3; $i++){
 for($j=0; $j<3; $j++){
 echo $add[$i][$j]." | ";
 }
 echo " -------- ";
}
echo " --------";
echo " ----------- ";

echo "The diagonal value is: ".$diagonal;
echo " --------";
echo " ----------- ";

array_string.php

<?php

$a = array("array","string");
$a = "YHIS IS A STRING";

// if(gettype($a)=='array') {
// echo "It is an Array";
// }
// if(gettype($a)=='string'){
// echo "It is an String";
// }

if(is_array($a)){
 echo "It is an Array";
}else{
 echo "It is an String";
}

?>

fast_last.html

<!DOCTYPE html>
<html>
<head>
 <meta charset="utf-8">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 <title> </title>
</head>
<body>

<form method="POST" action="first_last.php">
 <input type="text" name="values" placeholder="Enter any String.." id="v1">
 <input type="submit" name="submit" id="Submit">
</form>

</body>
</html>

fast_last.php
<?php
if(isset($_REQUEST['values']))
{
 $text = $_REQUEST['values'];

 $array = explode(" ",$text);

 $firstword = array_shift($array);

 $lastword = array_pop($array);

 echo "First word is:" .$firstword . " Last word is: ".$lastword;
}

?>

matrix.php

echo " Matrix of Add is: ----------- ";
for($i=0; $i<3; $i++){
 for($j=0; $j<3; $j++){
 echo $add[$i][$j]." | ";
 }
 echo " -------- ";
}
echo " --------";
echo " ----------- ";

echo "The diagonal value is: ".$diagonal;
echo " --------";
echo " ----------- ";

Positive negative.php

<?php

$a = array(1,2,3,4,-1,0,-2,0,0,7);
$pos = array();
$neg = array();
$zer = array();

for ($i= 0; $i < count($a); $i++){
 if($a[$i]==0)
 array_push($zer,$a[$i]);
 else if($a[$i]>0)
 array_push($pos,$a[$i]);
 else
 array_push($neg,$a[$i]);
}

echo "Positive Nos are: ".implode(", ", $pos)." and no of occurances are: ".count($pos)." Negative Nos are: ".implode(", ",$neg)." and no of occurances are: ".count($neg)." Zero Nos are: ".implode(", ",$zer)." and no of occurances are: ".count($zer);

?>

String array.php

<?php

// H>W>Take 2 index array, first merge this array then convert into a string. Reverse of the given string and find the first alphabet of the given string.

$a = array(1,2,3,4,5,6,7,8);
echo "A is ";
print_r($a);

$b = array(19,20,22,23,45,56,12,24);
echo " B is ";
print_r($b);

$c = array_merge($a, $b);
echo " After merging C is ";
print_r($c);

$st = implode(" ",$c);
echo " After String coversion Str is ".$st;

$rst = strrev($st);
echo " After Reversing String Str is ".$rst;

echo " First alphabet is ". substr($rst, 0, 1);

// echo " First Word is ". strtok($rst, " ");
// // string to kth index
// echo " First Word is ". strstr($rst, " ",true);

?>

String_fun.php

<?php

$str = "hello, how are you";
$str1 = "Hello, today is friday";

echo ucfirst($str);
// uppercase first
echo " ";

echo lcfirst($str1);
// lowercase first
echo " ";

echo ucwords($str);
// uppercase words
echo " ";

echo strrev($str);
// reverse
echo " ";

echo str_word_count($str);
// count no of words
echo " ";

echo str_replace("today", "it", $str1);
// count no of words
echo " strstr ";

echo strstr($str,'o');
// Occurance of the string, case-sensitive function
echo " stristr ";

echo stristr($str,'H');
// Occurance of the string, case-insensitive
echo " strlen ";

echo strlen($str);
// count the string
echo " strpos ";

echo strpos($str,"how");
// count the string
echo " strrpos ";

echo strrpos($str,"hello,");
// count the string reverse postion like mirror
echo " strripos ";

echo strripos($str,"Hello,");
// count the string reverse postion like mirror case-insensitive
echo " strripos ";

echo strripos($str,"Hello,");
// count the string reverse postion like mirror case-insensitive
echo " md5 ";

echo md5("Saifuddin");
echo " ";
// Hieroglyph

?>

No of vowel consonent etc

<?php

// Take a word "Apple is" Find how many vowels and consonent are present.

$a = 'Apple is';
$v=0;
$c=0;
$vowels = ['a','e','i','o','u'];
$whitespace= [" "];
$w=0;

for($i=0; $i< strlen($a); $i++){
 // echo $a[$i];
 if (in_array(strtolower($a[$i]), $vowels)) {
 echo $a[$i]." is a Vowel ";
 $v++;
 }
 else if (in_array(strtolower($a[$i]), $whitespace)){
 echo $a[$i]." is a WhiteSpace ";
 $w++;
 }
 else{
 echo $a[$i]." is a Consonant ";
 $c++;
 }
}

echo " No of Vowels are: ".$v;
echo " No of Consonant are: ".$c;
echo " No of WhiteSpace are: ".$w;

?>

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