Assignment 3 : Arrays and Strings

Assignment 3 : Arrays and Strings

Practice Programs:

1. Write a PHP Script to define an array. Find the element from the array that matches the given value using the appropriate search function.

Answer :

<?php include('../include/topnav.html')?> <html> <div class="container-fluid"> <div class="col-10"> <form action="#" method="post"> <label for="">A : </label> <input type="text" name="a" class="include"> <input type="submit" value="Submit" class="btn btn-primary"> <input type="reset" value="Reset" class="btn btn-danger"> </form> <?php if(isset($_POST['a'])){ $a = $_POST['a']; $people = array("saurabh", "priya", "Rahul", "ramesh"); if (in_array("$a", $people)) { echo "Match found"; } else { echo "Match not found"; } } ?> </div> </div> </html>

2. Write a PHP script to count the total number of vowels (a,e, i,o,u) from the string. Show the occurrences of each vowel from the string.

Answer :

<?php include('../include/topnav.html')?> <html> <body> <form action="#" method=POST> <label>Enter String</label> <input type="text" name=str > <input type="submit" value="Submit" class="btn btn-primary"> <input type="reset" value="Clear" class="btn btn-danger"> </form> </body> </html> <?php if(isset($_POST['str'])){ $str=$_POST['str']; $a=0; $e=0; $i=0; $o=0; $u=0; for($j=0; $j<strlen($str); $j++){ if($str[$j]=="a") $a++; if($str[$j]=="e") $e++; if($str[$j]=="i") $i++; if($str[$j]=="o") $o++; if($str[$j]=="u") $u++; } echo "A = $a , E = $e , I = $i , O = $o , U = $u "; } ?>

3. Write PHP program to perform the following operations on Indexed Array:
a) Check the array element is positive or negative
b) Calculate the average of array elements
c) Calculate the sum of array elements

Answer :

<?php include('../include/topnav.html')?> <html> <div class="container-fluid"> <div class="col-10"> <form action="#" method="post"> <input type="radio" name="r" value='1'> <label>Check the array element is positive or negative</label><br> <input type="radio" name="r" value='2'> <label>Calculate the average of array elements</label><br> <input type="radio" name="r" value='3'> <label>Calculate the sum of array elements</label> <br> <input type="submit" value="Submit" class="btn btn-primary"> <input type="reset" value="Reset" class="btn btn-danger"> </form> <?php if(isset($_POST['r'])){ $array = array(10,111,12,13); switch($_POST['r']){ case 1 : if(min($array)<0){ echo "negative"; }else{ echo "positive"; } break; case 2 : $average = array_sum($array) / count($array); echo $average; break; case 3 : echo array_sum($array); break; } } ?> </div> </div> </html>

SET A:

1. Write PHP program to perform the following operations on Indexed Array:
a) Union of two arrays
b) Traverse the array elements in random order

Answer :

<?php $a1= array("priya","saurabh","swara"); $a2 = array("Volvo", "BMW", "Toyota"); print_r(array_merge($a1,$a2)); echo "<br>"; shuffle($a1); print_r($a1); ?>

2. Write a PHP program to perform the following operations on an associative array:
a) Display the elements of an array along with the keys.
b) Display the size of an array
c) Delete an element from an array from the given index.
d) Reverse the order of each element’s key-value pair
e) Traverse the elements in an array in random order.

Answer :

<html> <head> <?php include('../include/topnav.html');?> </head> <body> <div class="container-fluid"> <div class="col-9"> <div class="row"> <div class="container"> <div class="card border-secondary"> <div class="card-header"> </div> <div class="card-body"> </div> <div class="card-footer"> Answer : <div class="container mt-2 bg-gradient shadow border border-warning rounded mx-2 my-2"> <form method='post' class="form-group mx-3 my-3"> <h4>Operations On Associative Array</h4> <input type='radio' name='a' value='1'> a) Display Element<br> <input type='radio' name='a' value='2'> b) Display size<br> <input type='radio' name='a' value='3'> c) Delete Element <input type="number" name="del" class="form-group"><br> <input type='radio' name='a' value='4'> d) Reverse Element<br> <input type='radio' name='a' value='5' class="mb-3"> e) Traverse Element<br> <input type='submit' value='Submit' class="btn btn-outline-primary"> <input type='reset' value='Cancel' class="btn btn-outline-danger"> </form> </div> <?php if(isset($_POST['a'])){ $array=array('sachin'=>1000,'suresh'=>2000,'gajanan'=>3000,'sayali'=>4000); $ch=$_POST['a']; switch($ch) { case 1:foreach($array as $key=>$value) { echo"key:$key val:$value.<br>"; }break; case 2:echo sizeof($array); break; case 3 : $len=sizeof($array); array_splice($array,$_POST['del']); print_r( $array); break; case 4 : print_r(array_flip($array)); break; case 5 : shuffle($array); print_r($array); break; } } ?> </div> </div> </div> </div> </div> </div> </body> </html>

3. Write a PHP Script for the following:
a) Declare and Display a multidimensional Array.
b) Search and display a specific element from a Multidimensional array.

Answer :

<?php $myif = array( array( 'id' => '1', 'name' => 'saurabh', ), array( 'id' => '2', 'name' => 'priya', ), array( 'id' => '3', 'name' => 'swati', ) ); print_r($myif); function search($id, $array) { foreach ($array as $key => $val) { if ($val['id'] === $id) { return $key; } } return null; } echo $id = search('2', $myif); ?>

SET B:

1. Write a PHP script to perform the following operations on string :
i) Compare string 2 with string3.
ii) Convert all the strings to Upper case
iii) Convert all the strings to Lowercase

Answer :

<html> <head> <?php include('../include/topnav.html')?> </head> <body> <div class="container-fluid"> <div class="col-10"> <div class="row"> <div class="container mt-2 bg-gradient shadow border border-warning rounded mx-2 my-2 "> <form method="post" class="form-group mx-3 my-3"> <label> Enter first string : </label> <input type="text" name="str1" class="form-control"> <label>Enter second string : </label> <input type="text" name="str2" class="form-control"> <input type="radio" name="ch" value=1> Compare string 2 with string3. <input type="radio" name="ch" value=2> Convert all the strings to Upper case. <input type="radio" name="ch" value=3> Convert all the strings to Lowercase. <input type="submit" value="check" class="btn btn-outline-primary"> <input type="reset" value="cancel" class="btn btn-outline-danger"> </form> </div> <?php if(isset($_POST['ch'])){ $str1=$_POST['str1']; $str2=$_POST['str2']; $ch=$_POST['ch']; switch($ch) { case 1: $s=strcmp($str1,$str2); if($s==0) echo"Both string are exat equal.<br>"; else echo"Both string are not equal.<br>"; break; case 2: echo ucwords($str1); echo ucwords($str1); break; case 3: echo strtolower($str1); echo strtolower($str2); break; } } ?> </div> </body> </html>

2. Write a PHP script to perform the following operations on string :
i) Convert each word of a string to Lowercase and Uppercase.
ii) Find the first and last occurrence of string2 in string1.

Answer :

<html> <head> <?php include('../include/topnav.html')?> </head> <body> <div class="container-fluid"> <div class="col-10"> <div class="row"> <div class="container mt-2 bg-gradient shadow border border-warning rounded mx-2 my-2 "> <form method="post" class="form-group mx-3 my-3"> <label> Enter first string : </label> <input type="text" name="str1" class="form-control"> <label>Enter second string : </label> <input type="text" name="str2" class="form-control"> <input type="radio" name="ch" value=1> Convert each word of a string to Lowercase and Uppercase. <input type="radio" name="ch" value=2> Find the first and last occurrence of string2 in string1. <input type="submit" value="check" class="btn btn-outline-primary"> <input type="reset" value="cancel" class="btn btn-outline-danger"> </form> </div> <?php if(isset($_POST['ch'])){ $str1=$_POST['str1']; $str2=$_POST['str2']; $ch=$_POST['ch']; switch($ch) { case 1: echo ucwords($str1); echo ucwords($str1); echo "<br>"; echo strtolower($str1); echo strtolower($str2); break; case 2: echo"<br>First occ is at possition :"; echo strpos($str1,$str2); echo"<br>Last occ is at possition :"; echo strrpos($str1,$str2); break; } } ?> </div> </body> </html>

3. Write a menu-driven program in PHP to perform the following operations on associative arrays:
i) Sort the array by values (changing the keys) in ascending, descending order.
ii) Also, sort the array by values without changing the keys.
iii) Find the intersection of two arrays.
iv) Find the union of two arrays.

Answer :

<html> <head> <?php include('../include/topnav.html');?> </head> <body> <div class="container-fluid"> <div class="col-10"> <div class="row"> <form method="post"> <h2>Enter choice :</h2> <input type="radio" name="ch" value=1> Sort the array by values (changing the keys) in ascending, descending order.<br> <input type="radio" name="ch" value=2> Also, sort the array by values without changing the keys. <br> <input type="radio" name="ch" value=3> Find the intersection of two arrays <br> <input type="radio" name="ch" value=4> Find the union of two arrays<br> <input type="submit" value="SUBMIT"> <input type="reset" value="CLEAR"> </form> </div> </div> </div> </body> </html> <?php if(isset($_POST['ch'])){ function is_odd($var) { if($var%2==1) return $var; } $choice=$_POST['ch']; $arr=array('a'=>1,'b'=>2,'c'=>3,'d'=>4,'e'=>5,'f'=>6,'g'=>7,'h'=>8); $arr1=array('l'=>11,'m'=>22,'n'=>33,'o'=>44,'p'=>55,'q'=>66,'r'=>77,'s'=>88); $arr2=array('a'=>10,'b'=>20,'c'=>30,'d'=>40,'e'=>50,'f'=>60,'g'=>70,'h'=>80); switch($choice) { case 1: sort($arr); echo "Array in ascending order:<br>"; print_r($arr); rsort($arr); echo "<br>Array in descending order:<br>"; print_r($arr); break; case 2: asort($arr); echo "Array in ascending order:<br>"; print_r($arr); arsort($arr); echo "<br>Array in descending order:<br>"; print_r($arr); break; case 3: print_r(array_intersect($arr,$arr1)); break; case 4: $union=array_merge($arr,$arr1); print_r(array_unique($union)); break; } } ?>

SET C:

1. Write a PHP script to perform the following operations on string :
i) Replace the string2 by string3 in string1.
ii) Reverse and display the string.

Answer :

<?php echo str_replace("world","Peter","Hello world!"); echo strrev("Hello World!"); ?>

Team Analytics

Assignment 3 : Arrays and Strings

1. Write a PHP Script to define an array. Find the element from the array that matches the given value using the appropriate search function.

2. Write a PHP script to count the total number of vowels (a,e, i,o,u) from the string. Show the occurrences of each vowel from the string.

3. Write PHP program to perform the following operations on Indexed Array:
a) Check the array element is positive or negative
b) Calculate the average of array elements
c) Calculate the sum of array elements

1. Write PHP program to perform the following operations on Indexed Array:
a) Union of two arrays
b) Traverse the array elements in random order

3. Write a PHP Script for the following:
a) Declare and Display a multidimensional Array.
b) Search and display a specific element from a Multidimensional array.

1. Write a PHP script to perform the following operations on string :
i) Compare string 2 with string3.
ii) Convert all the strings to Upper case
iii) Convert all the strings to Lowercase

2. Write a PHP script to perform the following operations on string :
i) Convert each word of a string to Lowercase and Uppercase.
ii) Find the first and last occurrence of string2 in string1.

1. Write a PHP script to perform the following operations on string :
i) Replace the string2 by string3 in string1.
ii) Reverse and display the string.

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Assignment 3 : Arrays and Strings

1. Write a PHP Script to define an array. Find the element from the array that matches the given value using the appropriate search function.

2. Write a PHP script to count the total number of vowels (a,e, i,o,u) from the string. Show the occurrences of each vowel from the string.

3. Write PHP program to perform the following operations on Indexed Array:a) Check the array element is positive or negativeb) Calculate the average of array elementsc) Calculate the sum of array elements

1. Write PHP program to perform the following operations on Indexed Array: a) Union of two arrays b) Traverse the array elements in random order

3. Write a PHP Script for the following:a) Declare and Display a multidimensional Array.b) Search and display a specific element from a Multidimensional array.

1. Write a PHP script to perform the following operations on string : i) Compare string 2 with string3. ii) Convert all the strings to Upper case iii) Convert all the strings to Lowercase

2. Write a PHP script to perform the following operations on string :i) Convert each word of a string to Lowercase and Uppercase.ii) Find the first and last occurrence of string2 in string1.

1. Write a PHP script to perform the following operations on string :i) Replace the string2 by string3 in string1.ii) Reverse and display the string.

No comments:

Search This Blog

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Popular Posts

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3. Write PHP program to perform the following operations on Indexed Array:
a) Check the array element is positive or negative
b) Calculate the average of array elements
c) Calculate the sum of array elements

1. Write PHP program to perform the following operations on Indexed Array:
a) Union of two arrays
b) Traverse the array elements in random order

3. Write a PHP Script for the following:
a) Declare and Display a multidimensional Array.
b) Search and display a specific element from a Multidimensional array.

1. Write a PHP script to perform the following operations on string :
i) Compare string 2 with string3.
ii) Convert all the strings to Upper case
iii) Convert all the strings to Lowercase

2. Write a PHP script to perform the following operations on string :
i) Convert each word of a string to Lowercase and Uppercase.
ii) Find the first and last occurrence of string2 in string1.

1. Write a PHP script to perform the following operations on string :
i) Replace the string2 by string3 in string1.
ii) Reverse and display the string.