PHP Programming Basics-String Operations

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PHP string operations

PROBLEM DEFINITION

 Write a program to implement string concatenation, string length, string position, and string replace.

 ALGORITHM

Step 1: Start

Step 2: Enter the strings.

Step 3: Read it to string1 and string2.

Step 4: Perform concatenation using “string1.string2”

Step 5: Find sring length using strlen()

Step 6: Find string position using strpos().

Step 7: Find string replace using strreplace().

Step 8: End.

PROGRAM DEVELOPMENT

 <?php

echo “enter the choicen”;

echo “1.string concatenationn2.string lengthn3.string positionn4.string replace”;

$st1=fopen(“php://stdin”,”r”);

$n=fgets($st1);

switch ($n):

case 1:

       echo “enter the first stringn”;

       $str1=fopen(“php://stdin”,”r”);

       $txt1=fgets($str1);

       echo “enter the first stringn”;

       $str2=fopen(“php://stdin”,”r”);

       $txt2=fgets($str2);

       echo $txt1 . ” ” . $txt2;

      break;

case 2:

       echo “enter the stringn”;

       $str3=fopen(“php://stdin”,”r”);

       $txt3=fgets($str3);

       echo strlen($txt3);

       break;

 case 3:

       echo “enter the stringn”;

       $str4=fopen(“php://stdin”,”r”);

       $txt4=fgets($str4);

       echo “enter the string whose position need to be foundn”;

$str5=fopen(“php://stdin”,”r”);

$txt5=fgets($str5);

echo strpos(“$txt4″,”$txt5”);

break;

case 4:echo “enter the stringn”;

$str5=fopen(“php://stdin”,”r”);

$txt5=fgets($str5);

echo “enter the string to be replacedn”;

$str6=fopen(“php://stdin”,”r”);

$txt6=fgets($str6);

echo “enter the replacing stringn”;

$str7=fopen(“php://stdin”,”r”);

$txt7=fgets($str7);

echo str_replace(“$txt6″,”$txt7″,”$txt5”);

break;

endswitch;

?>

OUTPUT

Enter the choice

1.string concatenation

2.srting length

3.string position

4.string replace

1

Enter the first string

Good

Enter the second string

Morning

Good morning

Enter the choice

1.string concatenation

2.string length

3.string position

4.string replace

2

Enter the string

Good

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Jesna is an assistant professor, digital marketing strategist and professional blogger who stumbled upon writing online since 2009. She started her blogging career in 2010, and never looked back. Since then, she has developed an incredible passion for writing about all sorts of tech. Away from blogosphere, she loves to paint and is the founder of fineartblogger.com

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