How to Split on Last Occurrence of Delimiter in PHP ?

<?php

$string = "Sam/is/working/hard";

// Find the last occurrence of the
// delimiter '|'
$lastDelimiterPos = strrpos($string, '/');

// Check if the delimiter is found
if ($lastDelimiterPos !== false) {
  
    // Split the string based on the last
      // occurrence of the delimiter
    $part1 = substr($string, 0, $lastDelimiterPos);
    $part2 = substr($string, $lastDelimiterPos + 1);

    echo "String 1: $part1\n";
    echo "String 2: $part2\n";
} else {
  
    // Handle the case where the delimiter is not found
    echo "Delimiter not found in the string.\n";
}

?>

<?php

$string = "    Sam/is/working/hard";

// Reverse the string
$reversedString = strrev($string);

// Split the reversed string based
// on the first occurrence of '|'
$parts = explode('/', $reversedString, 2);

// Reverse each part back to the
// original order
$part1 = strrev($parts[1]);
$part2 = strrev($parts[0]);

echo "String 1: $part1\n";
echo "String 2: $part2\n";

?>

<?php

$string = "Sam/is/working/hard";

// Match the last occurrence of '|'
preg_match('/^(.*)\/(.*)$/', $string, $matches);

// Extract the parts
$part1 = $matches[1];
$part2 = $matches[2];

echo "String 1: $part1\n";
echo "String 2: $part2\n";

?>

<?php

$string = "Sam/is/working/hard";

// Reverse the string
$reversedString = strrev($string);

// Find the position of the first occurrence of '|'
$firstDelimiterPos = strpos($reversedString, "/");

// Split the reversed string based
// on the first occurrence of '|'
$part1 = substr($reversedString, $firstDelimiterPos);
$part2 = substr($reversedString, 0, $firstDelimiterPos);

// Reverse each part back to the original order
$part1 = strrev($part1);
$part2 = strrev($part2);

echo "String 1: $part1\n";
echo "String 2: $part2\n";

?>

<?php
function splitStringByLastDelimiter($input, $delimiter) {
    // Convert the string to an array using explode
    $parts = explode($delimiter, $input);
    
    // Extract the last part
    $lastPart = array_pop($parts);
    
    // Join the remaining parts back into a string
    $firstPart = implode($delimiter, $parts);
    
    return [$firstPart, $lastPart];
}

// Sample input
$inputString = "Sam|is|working|hard";
$delimiter = "|";

// Split the string
list($string1, $string2) = splitStringByLastDelimiter($inputString, $delimiter);

echo "String 1: " . $string1 . "\n"; // Output: Sam|is|working
echo "String 2: " . $string2 . "\n"; // Output: hard

?>

<?php
function splitStringByLastDelimiter($str, $delimiter) {
    // Find the last occurrence of the delimiter
    $lastPart = strrchr($str, $delimiter);
    
    // Check if the delimiter is found
    if ($lastPart !== false) {
        // Remove the delimiter from the beginning of $lastPart
        $lastPart = substr($lastPart, 1);
        
        // Get the first part of the string
        $firstPart = substr($str, 0, strrpos($str, $delimiter));
        
        return [$firstPart, $lastPart];
    } else {
        // If delimiter is not found, return the original string as first part and empty second part
        return [$str, ''];
    }
}

// Example usage
$str = "Sam|is|working|hard";
$delimiter = '|';

list($firstPart, $lastPart) = splitStringByLastDelimiter($str, $delimiter);

echo "String 1: " . $firstPart . PHP_EOL;
echo "String 2: " . $lastPart . PHP_EOL;
?>