﻿ PHP Exercise: Compute the digit number of sum of two given integers - w3resource

# PHP Exercises: Compute the digit number of sum of two given integers

## PHP: Exercise-47 with Solution

Write a PHP program to compute the digit number of sum of two given integers.

Input:
Each test case consists of two non-negative integers x and y which are separated by a space in a line.
0 ≤ x, y ≤ 1,000,000

Pictorial Presentation: Sample Solution: -

PHP Code:

``````<?php
while(true) {
\$inputs = explode(' ', trim(fgets(STDIN)));
if (!is_array(\$inputs) || count(\$inputs) < 2) {
exit;
}
\$a = \$inputs;
\$b = \$inputs;
\$d = numDigits(\$a + \$b);
echo("Digit number of sum of two given integers: ");
echo \$d . "\n";
}
function numDigits(\$n) {
return (int)(log10(\$n) + 1);
}
?>
```
```

Sample Output:

```Digit number of sum of two given integers: 2
```

Flowchart: PHP Code Editor:

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## PHP: Tips of the Day

PHP: Correct file permissions for WordPress

When you setup WP you (the webserver) may need write access to the files. So the access rights may need to be loose.

```chown www-data:www-data  -R * # Let Apache be owner
find . -type d -exec chmod 755 {} \;  # Change directory permissions rwxr-xr-x
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```

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```chown <username>:<username>  -R * # Let your useraccount be owner
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```

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Ref : https://bit.ly/3hcrTkL

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