Universal Code Snippet
<?php
echo "Hello, World!\n";
?>
<?php
echo "Enter your name: ";
$name = trim(fgets(STDIN));
echo "Hello, $name!\n";
?>
<?php
$age = 20;
if ($age >= 18) {
echo "You are an adult.\n";
} else {
echo "You are a minor.\n";
}
?>
<?php
echo "For loop:\n";
for ($i = 1; $i <= 5; $i++) {
echo "$i ";
}
echo "\n";
echo "While loop:\n";
$j = 1;
while ($j <= 5) {
echo "$j ";
$j++;
}
echo "\n";
?>
<?php
function add($a, $b) {
return $a + $b;
}
echo "Sum: " . add(10, 20) . "\n";
?>
<?php
$numbers = [10, 20, 30, 40, 50];
foreach ($numbers as $i => $v) {
echo "Element $i: $v\n";
}
?>
<?php
$str1 = "Hello";
$str2 = " World";
echo "Length: " . strlen($str1) . "\n";
$combined = $str1 . $str2;
echo "Concatenated: $combined\n";
echo "Uppercase: " . strtoupper($combined) . "\n";
?>
<?php
$a = 15.0;
$b = 4.0;
echo "Add: " . ($a + $b) . "\n";
echo "Subtract: " . ($a - $b) . "\n";
echo "Multiply: " . ($a * $b) . "\n";
echo "Divide: " . ($a / $b) . "\n";
?>
