diff --git a/includes/language/Language.php b/includes/language/Language.php
index 3212e539d4e..9a1b184f0cf 100644
--- a/includes/language/Language.php
+++ b/includes/language/Language.php
@@ -1860,7 +1860,7 @@ class Language implements Bcp47Code {
 		$gm = (int)substr( $ts, 4, 2 );
 		$gd = (int)substr( $ts, 6, 2 );
 
-		if ( !strcmp( $cName, 'thai' ) ) {
+		if ( $cName === 'thai' ) {
 			# Thai solar dates
 			# Add 543 years to the Gregorian calendar
 			# Months and days are identical
@@ -1873,12 +1873,12 @@ class Language implements Bcp47Code {
 				}
 				$gm = ( $gm - 3 ) % 12;
 			}
-		} elseif ( ( !strcmp( $cName, 'minguo' ) ) || !strcmp( $cName, 'juche' ) ) {
+		} elseif ( $cName === 'minguo' || $cName === 'juche' ) {
 			# Minguo dates
 			# Deduct 1911 years from the Gregorian calendar
 			# Months and days are identical
 			$gy_offset = $gy - 1911;
-		} elseif ( !strcmp( $cName, 'tenno' ) ) {
+		} elseif ( $cName === 'tenno' ) {
 			# Nengō dates up to Meiji period
 			# Deduct years from the Gregorian calendar
 			# depending on the nengo periods
@@ -4025,7 +4025,7 @@ class Language implements Bcp47Code {
 	public function translateBlockExpiry( $str, UserIdentity $user = null, $now = 0 ) {
 		$duration = SpecialBlock::getSuggestedDurations( $this );
 		foreach ( $duration as $show => $value ) {
-			if ( strcmp( $str, $value ) == 0 ) {
+			if ( $str === $value ) {
 				return trim( $show );
 			}
 		}
diff --git a/includes/languages/LanguageKk_cyrl.php b/includes/languages/LanguageKk_cyrl.php
index 5b441faa42a..d51cd294fda 100644
--- a/includes/languages/LanguageKk_cyrl.php
+++ b/includes/languages/LanguageKk_cyrl.php
@@ -755,7 +755,7 @@ class LanguageKk_cyrl extends Language {
 		$lastLetter[1] = null;
 		foreach ( $wordReversed as $xvalue ) {
 			foreach ( $allVowels as $yvalue ) {
-				if ( strcmp( $xvalue, $yvalue ) == 0 ) {
+				if ( $xvalue === $yvalue ) {
 					$lastLetter[1] = $xvalue;
 					break;
 				}
diff --git a/includes/languages/LanguageTyv.php b/includes/languages/LanguageTyv.php
index 4d11f23dcfb..300fdcac314 100644
--- a/includes/languages/LanguageTyv.php
+++ b/includes/languages/LanguageTyv.php
@@ -70,7 +70,7 @@ class LanguageTyv extends Language {
 		$wordLastVowel = null;
 		foreach ( $wordReversed as $xvalue ) {
 			foreach ( $allVowels as $yvalue ) {
-				if ( strcmp( $xvalue, $yvalue ) == 0 ) {
+				if ( $xvalue === $yvalue ) {
 					$wordLastVowel = $xvalue;
 					break;
 				}