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Check a file exists



Check a file exists

<?php
$filename = 'test.csv'; 
if (file_exists($filename)) 
{
print "The file $filename exists";
} 
else 
{
print "The file $filename does not exist";
}
?>

Finds the Sum of ASCII Values of All Chars
Program takes a 'string as input' and finds the sum of 'ASCII values' of all characters in given string. Take a string as "input & store" it in the array string[]. Initialize the variable sum to '0'.

Display the Nodes of Linked list in Reverse
Program to display the nodes of a Linked List in Reverse without using Recursion. Program, using iteration, Displays Linked list in reverse. Linked list is an ordered set of data elements,

Write structure into file in C Programming
The function adds the relatiuve addres to the index for a key. C function writes a record to the file. Sets the relative address for the next record to be the value of current file position

Code find first & last digit of any number
C program to input a number from user and find first and last digit of number using loop. Before I explain logic to find first digit, let us first learn to find last digit of a number. Find

Calculate Display the Grade of the Student
To calculate "grade of a student" on the basis of his total marks in C++ Programming, ask to the user to enter marks obtained in some subjects (5 subjects here). To calculate grade

Program Check If a Number is Palindrome
If a number remains same, even if we reverse its digits then number is Palindrome number. So 10201 is a Palindrome Number because it remains same if we reverse its digits. C codes

C Standard Form of a Quadratic Equation
The determinant tells the nature of the roots. b*b-4ac: Determinant of quadratic equation. If determinant is greater than 0, the roots are real and different. If determinant is equal to 0

C++ Program to Implement LeftList Heap
In this, Merge rhs into the priority queue. rhs becomes empty. rhs must be different from this and Internal method to merge two roots. Deals with "deviant cases" and calls recursive