1 files changed, 0 insertions, 69 deletions
diff --git a/includes/ArrayUtils.php b/includes/ArrayUtils.php
deleted file mode 100644
index 985271f7..00000000
--- a/includes/ArrayUtils.php
+++ /dev/null
@@ -1,69 +0,0 @@
-<?php
-
-class ArrayUtils {
-	/**
-	 * Sort the given array in a pseudo-random order which depends only on the
-	 * given key and each element value. This is typically used for load
-	 * balancing between servers each with a local cache.
-	 *
-	 * Keys are preserved. The input array is modified in place.
-	 *
-	 * Note: Benchmarking on PHP 5.3 and 5.4 indicates that for small
-	 * strings, md5() is only 10% slower than hash('joaat',...) etc.,
-	 * since the function call overhead dominates. So there's not much
-	 * justification for breaking compatibility with installations
-	 * compiled with ./configure --disable-hash.
-	 *
-	 * @param $array The array to sort
-	 * @param $key The string key
-	 * @param $separator A separator used to delimit the array elements and the
-	 *     key. This can be chosen to provide backwards compatibility with
-	 *     various consistent hash implementations that existed before this
-	 *     function was introduced.
-	 */
-	public static function consistentHashSort( &$array, $key, $separator = "\000" ) {
-		$hashes = array();
-		foreach ( $array as $elt ) {
-			$hashes[$elt] = md5( $elt . $separator . $key );
-		}
-		uasort( $array, function ( $a, $b ) use ( $hashes ) {
-			return strcmp( $hashes[$a], $hashes[$b] );
-		} );
-	}
-
-	/**
-	 * Given an array of non-normalised probabilities, this function will select
-	 * an element and return the appropriate key
-	 *
-	 * @param $weights array
-	 *
-	 * @return bool|int|string
-	 */
-	public static function pickRandom( $weights ) {
-		if ( !is_array( $weights ) || count( $weights ) == 0 ) {
-			return false;
-		}
-
-		$sum = array_sum( $weights );
-		if ( $sum == 0 ) {
-			# No loads on any of them
-			# In previous versions, this triggered an unweighted random selection,
-			# but this feature has been removed as of April 2006 to allow for strict
-			# separation of query groups.
-			return false;
-		}
-		$max = mt_getrandmax();
-		$rand = mt_rand( 0, $max ) / $max * $sum;
-
-		$sum = 0;
-		foreach ( $weights as $i => $w ) {
-			$sum += $w;
-			# Do not return keys if they have 0 weight.
-			# Note that the "all 0 weight" case is handed above
-			if ( $w > 0 && $sum >= $rand ) {
-				break;
-			}
-		}
-		return $i;
-	}
-}