dechex():hexadecimal equivalent of decimal number

<?Php
echo dechex(2); // Output 2 
echo "<br>";
echo dechex(25); // Output 19 
echo "<br>";
echo dechex(200); // Output is c8
echo "<br>";
echo dechex(358); // Output is 166
echo "<br>";
echo dechex(2000); // Output is 7d0
?>

string dechex(int $number);

Example 1: Converting Large Decimal Numbers

<?php
echo dechex(10000);  // Output: 2710
?>

Example 2: Converting Negative Numbers

<?php
echo dechex(-255);  // Output: ffffff01 (two's complement representation)
?>

Example 3: Converting Multiple Decimal Numbers

<?php
$numbers = [15, 255, 4096];
foreach ($numbers as $num) {
    echo dechex($num) . "<br>";
}
?>

Example 4: Converting Decimal to Hexadecimal with Padding

<?php
$number = 255;
echo str_pad(dechex($number), 4, '0', STR_PAD_LEFT);  // Output: 00ff
?>

Example 5: Hexadecimal Conversion in a Loop

<?php
for ($i = 0; $i <= 10; $i++) {
    echo "Decimal: $i => Hex: " . dechex($i) . "<br>";
}
?>

Subhendu Mohapatra

Author & Instructor at plus2net

I write and maintain practical tutorials on Python, PHP, SQL, JavaScript, HTML, jQuery, and web development at plus2net. The tutorials focus on clear explanations, working examples, and code that readers can test and adapt while learning.

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