Drop FastStringSearch support from ReplacementArray

It's not needed after a PHP 5.5 switch

Change-Id: I989f39d59878039d8cc320af957a90982e48d08d

1 files changed, 3 insertions, 27 deletions

diff --git a/includes/libs/ReplacementArray.php b/includes/libs/ReplacementArray.php
index ea50a854b2eb..02762f36d146 100644
--- a/includes/libs/ReplacementArray.php
+++ b/includes/libs/ReplacementArray.php
@@ -19,19 +19,17 @@
  */
 
 /**
- * Replacement array for FSS with fallback to strtr()
- * Supports lazy initialisation of FSS resource
+ * Wrapper around strtr() that holds replacements
  */
 class ReplacementArray {
 	private $data = false;
-	private $fss = false;
 
 	/**
 	 * Create an object with the specified replacement array
 	 * The array should have the same form as the replacement array for strtr()
 	 * @param array $data
 	 */
-	public function __construct( $data = array() ) {
+	public function __construct( $data = [] ) {
 		$this->data = $data;
 	}
 
@@ -42,17 +40,12 @@ class ReplacementArray {
 		return array( 'data' );
 	}
 
-	public function __wakeup() {
-		$this->fss = false;
-	}
-
 	/**
 	 * Set the whole replacement array at once
 	 * @param array $data
 	 */
 	public function setArray( $data ) {
 		$this->data = $data;
-		$this->fss = false;
 	}
 
 	/**
@@ -69,7 +62,6 @@ class ReplacementArray {
 	 */
 	public function setPair( $from, $to ) {
 		$this->data[$from] = $to;
-		$this->fss = false;
 	}
 
 	/**
@@ -77,7 +69,6 @@ class ReplacementArray {
 	 */
 	public function mergeArray( $data ) {
 		$this->data = $data + $this->data;
-		$this->fss = false;
 	}
 
 	/**
@@ -85,7 +76,6 @@ class ReplacementArray {
 	 */
 	public function merge( ReplacementArray $other ) {
 		$this->data = $other->data + $this->data;
-		$this->fss = false;
 	}
 
 	/**
@@ -93,7 +83,6 @@ class ReplacementArray {
 	 */
 	public function removePair( $from ) {
 		unset( $this->data[$from] );
-		$this->fss = false;
 	}
 
 	/**
@@ -103,7 +92,6 @@ class ReplacementArray {
 		foreach ( $data as $from => $to ) {
 			$this->removePair( $from );
 		}
-		$this->fss = false;
 	}
 
 	/**
@@ -111,18 +99,6 @@ class ReplacementArray {
 	 * @return string
 	 */
 	public function replace( $subject ) {
-		if (
-			function_exists( 'fss_prep_replace' ) &&
-			version_compare( PHP_VERSION, '5.5.0' ) < 0
-		) {
-			if ( $this->fss === false ) {
-				$this->fss = fss_prep_replace( $this->data );
-			}
-			$result = fss_exec_replace( $this->fss, $subject );
-		} else {
-			$result = strtr( $subject, $this->data );
-		}
-
-		return $result;
+		return strtr( $subject, $this->data );
 	}
 }