diff --git a/ext/intl/tests/breakiter_getLocale_basic.phpt b/ext/intl/tests/breakiter_getLocale_basic.phpt
index b0112cc847f..2f5f586f16b 100644
--- a/ext/intl/tests/breakiter_getLocale_basic.phpt
+++ b/ext/intl/tests/breakiter_getLocale_basic.phpt
@@ -1,9 +1,8 @@
 --TEST--
 IntlBreakIterator::getLocale(): basic test
 --SKIPIF--
-<?php
-if (!extension_loaded('intl'))
-	die('skip intl extension not enabled');
+<?php if (!extension_loaded('intl')) die('skip intl extension not enabled'); ?>
+<?php if (version_compare(INTL_ICU_VERSION, '53.1') >=  0) die('skip for ICU < 53.1'); ?>
 --FILE--
 <?php
 ini_set("intl.error_level", E_WARNING);
@@ -18,4 +17,4 @@ var_dump($bi->getLocale(1));
 --EXPECT--
 string(4) "root"
 string(4) "root"
-==DONE==
\ No newline at end of file
+==DONE==
diff --git a/ext/intl/tests/breakiter_getLocale_basic2.phpt b/ext/intl/tests/breakiter_getLocale_basic2.phpt
new file mode 100644
index 00000000000..60972fa9192
--- /dev/null
+++ b/ext/intl/tests/breakiter_getLocale_basic2.phpt
@@ -0,0 +1,20 @@
+--TEST--
+IntlBreakIterator::getLocale(): basic test
+--SKIPIF--
+<?php if (!extension_loaded('intl')) die('skip intl extension not enabled'); ?>
+<?php if (version_compare(INTL_ICU_VERSION, '53.1') < 0) die('skip for ICU >= 53.1'); ?>
+--FILE--
+<?php
+ini_set("intl.error_level", E_WARNING);
+ini_set("intl.default_locale", "pt_PT");
+
+$bi = IntlBreakIterator::createSentenceInstance('pt');
+
+var_dump($bi->getLocale(0));
+var_dump($bi->getLocale(1));
+?>
+==DONE==
+--EXPECT--
+string(4) "root"
+string(2) "pt"
+==DONE==
diff --git a/ext/intl/tests/bug62070.phpt b/ext/intl/tests/bug62070.phpt
index 3ab0078d709..645c32d9aac 100644
--- a/ext/intl/tests/bug62070.phpt
+++ b/ext/intl/tests/bug62070.phpt
@@ -1,11 +1,9 @@
 --TEST--
 Bug #62070: Collator::getSortKey() returns garbage
 --SKIPIF--
-<?php
-if (!extension_loaded('intl'))
-	die('skip intl extension not enabled');
-if (version_compare(INTL_ICU_VERSION, '49') < 0)
-	die('skip ICU >= 49 only');
+<?php if (!extension_loaded('intl')) die('skip intl extension not enabled'); ?>
+<?php if (version_compare(INTL_ICU_VERSION, '49') < 0) die('skip for ICU >= 49'); ?>
+<?php if (version_compare(INTL_ICU_VERSION, '53.1') >=  0) die('skip for ICU < 53.1'); ?>
 --FILE--
 <?php
 $s1 = 'Hello';
diff --git a/ext/intl/tests/bug62070_2.phpt b/ext/intl/tests/bug62070_2.phpt
new file mode 100644
index 00000000000..63f510793b1
--- /dev/null
+++ b/ext/intl/tests/bug62070_2.phpt
@@ -0,0 +1,15 @@
+--TEST--
+Bug #62070: Collator::getSortKey() returns garbage
+--SKIPIF--
+<?php if (!extension_loaded('intl')) die('skip intl extension not enabled'); ?>
+<?php if (version_compare(INTL_ICU_VERSION, '53.1') < 0) die('skip for ICU >= 53.1'); ?>
+--FILE--
+<?php
+$s1 = 'Hello';
+
+$coll = collator_create('en_US');
+$res = collator_get_sort_key($coll, $s1);
+
+echo urlencode($res);
+--EXPECT--
+71%3F%3FE%01%09%01%DC%08
diff --git a/ext/intl/tests/collator_create2.phpt b/ext/intl/tests/collator_create2.phpt
index 90d71b05718..5d9f35741bf 100644
--- a/ext/intl/tests/collator_create2.phpt
+++ b/ext/intl/tests/collator_create2.phpt
@@ -1,8 +1,9 @@
 --TEST--
-create() icu >= 4.8
+create() icu >= 4.8 && icu < 53.1
 --SKIPIF--
 <?php if( !extension_loaded( 'intl' ) ) print 'skip'; ?>
-<?php if(version_compare(INTL_ICU_VERSION, '4.8') < 0) print 'skip'; ?>
+<?php if(version_compare(INTL_ICU_VERSION, '4.8') < 0) print 'skip for ICU >= 4.8'; ?>
+<?php if (version_compare(INTL_ICU_VERSION, '53.1') >=  0) die('skip for ICU < 53.1'); ?>
 --FILE--
 <?php
 
diff --git a/ext/intl/tests/collator_create3.phpt b/ext/intl/tests/collator_create3.phpt
new file mode 100644
index 00000000000..c602e794cdc
--- /dev/null
+++ b/ext/intl/tests/collator_create3.phpt
@@ -0,0 +1,82 @@
+--TEST--
+create() icu >= 53.1 
+--SKIPIF--
+<?php if( !extension_loaded( 'intl' ) ) print 'skip'; ?>
+<?php if (version_compare(INTL_ICU_VERSION, '53.1') < 0) die('skip for ICU >= 53.1'); ?>
+--FILE--
+<?php
+
+/*
+ * Try creating collator with different locales
+ * with Procedural and Object methods.
+ */
+
+function ut_main()
+{
+    $res_str = '';
+
+    $locales = array(
+        'EN-US-ODESSA',
+        'UK_UA_ODESSA',
+        'uk-ua_CALIFORNIA@currency=;currency=GRN',
+        '',
+        'root',
+        'uk@currency=EURO',
+	'1234567891113151719212325272931333537394143454749515357596163656769717375777981838587899193959799'
+    );
+
+    foreach( $locales as $locale )
+    {
+        // Create Collator with the current locale.
+        $coll = ut_coll_create( $locale );
+        if( !is_object($coll) )
+        {
+            $res_str .= "Error creating collator with '$locale' locale: " .
+                 intl_get_error_message() . "\n";
+            continue;
+        }
+
+        // Get the requested, valid and actual locales.
+        $vloc = ut_coll_get_locale( $coll, Locale::VALID_LOCALE );
+        $aloc = ut_coll_get_locale( $coll, Locale::ACTUAL_LOCALE );
+
+        // Show them.
+        $res_str .= "Locale: '$locale'\n" .
+            "  ULOC_REQUESTED_LOCALE = '$locale'\n" .
+            "  ULOC_VALID_LOCALE     = '$vloc'\n" .
+            "  ULOC_ACTUAL_LOCALE    = '$aloc'\n";
+    }
+
+    return $res_str;
+}
+
+include_once( 'ut_common.inc' );
+ut_run();
+
+?>
+--EXPECTF--
+Locale: 'EN-US-ODESSA'
+  ULOC_REQUESTED_LOCALE = 'EN-US-ODESSA'
+  ULOC_VALID_LOCALE     = 'en_US'
+  ULOC_ACTUAL_LOCALE    = 'root'
+Locale: 'UK_UA_ODESSA'
+  ULOC_REQUESTED_LOCALE = 'UK_UA_ODESSA'
+  ULOC_VALID_LOCALE     = 'uk'
+  ULOC_ACTUAL_LOCALE    = 'uk'
+Locale: 'uk-ua_CALIFORNIA@currency=;currency=GRN'
+  ULOC_REQUESTED_LOCALE = 'uk-ua_CALIFORNIA@currency=;currency=GRN'
+  ULOC_VALID_LOCALE     = 'root'
+  ULOC_ACTUAL_LOCALE    = 'root'
+Locale: ''
+  ULOC_REQUESTED_LOCALE = ''
+  ULOC_VALID_LOCALE     = '%s'
+  ULOC_ACTUAL_LOCALE    = '%s'
+Locale: 'root'
+  ULOC_REQUESTED_LOCALE = 'root'
+  ULOC_VALID_LOCALE     = 'root'
+  ULOC_ACTUAL_LOCALE    = 'root'
+Locale: 'uk@currency=EURO'
+  ULOC_REQUESTED_LOCALE = 'uk@currency=EURO'
+  ULOC_VALID_LOCALE     = 'uk'
+  ULOC_ACTUAL_LOCALE    = 'uk'
+Error creating collator with '1234567891113151719212325272931333537394143454749515357596163656769717375777981838587899193959799' locale: Locale string too long, should be no longer than 80 characters: U_ILLEGAL_ARGUMENT_ERROR
diff --git a/ext/intl/tests/collator_get_sort_key_variant2.phpt b/ext/intl/tests/collator_get_sort_key_variant2.phpt
index bb09256d6bd..3c526fbc3ce 100644
--- a/ext/intl/tests/collator_get_sort_key_variant2.phpt
+++ b/ext/intl/tests/collator_get_sort_key_variant2.phpt
@@ -3,6 +3,7 @@ collator_get_sort_key()
 --SKIPIF--
 <?php if( !extension_loaded( 'intl' ) ) print 'skip'; ?>
 <?php if (version_compare(INTL_ICU_VERSION, '51.2') < 0) die('skip for ICU >= 51.2'); ?>
+<?php if (version_compare(INTL_ICU_VERSION, '53.1') >=  0) die('skip for ICU < 53.1'); ?>
 --FILE--
 <?php
 
diff --git a/ext/intl/tests/collator_get_sort_key_variant3.phpt b/ext/intl/tests/collator_get_sort_key_variant3.phpt
new file mode 100644
index 00000000000..cc2a23b2b88
--- /dev/null
+++ b/ext/intl/tests/collator_get_sort_key_variant3.phpt
@@ -0,0 +1,98 @@
+--TEST--
+collator_get_sort_key()
+--SKIPIF--
+<?php if( !extension_loaded( 'intl' ) ) print 'skip'; ?>
+<?php if (version_compare(INTL_ICU_VERSION, '53.1') < 0) die('skip for ICU >= 53.1'); ?>
+--FILE--
+<?php
+
+/*
+ * Get sort keys using various locales
+ */
+function sort_arrays( $locale, $data )
+{
+    $res_str = '';
+
+    $coll = ut_coll_create( $locale );
+
+	foreach($data as $value) {
+		$res_val = ut_coll_get_sort_key( $coll, $value );
+		$res_str .= "source: ".$value."\n".
+					"key: ".bin2hex($res_val)."\n";
+	}
+
+    return $res_str;
+}
+
+
+function ut_main()
+{
+    $res_str = '';
+
+    // Regular strings keys
+    $test_params = array(
+		'abc', 'abd', 'aaa',
+		'аа', 'а', 'z',
+		'', null , '3',
+        'y'  , 'i'  , 'k'
+    );
+
+    $res_str .= sort_arrays( 'en_US', $test_params );
+
+    // Sort a non-ASCII array using ru_RU locale.
+    $test_params = array(
+		'абг', 'абв', 'жжж', 'эюя'
+    );
+
+    $res_str .= sort_arrays( 'ru_RU', $test_params );
+
+    // Sort an array using Lithuanian locale.
+    $res_str .= sort_arrays( 'lt_LT', $test_params );
+
+    return $res_str . "\n";
+}
+
+include_once( 'ut_common.inc' );
+ut_run();
+?>
+--EXPECT--
+source: abc
+key: 292b2d01070107
+source: abd
+key: 292b2f01070107
+source: aaa
+key: 29292901070107
+source: аа
+key: 5e090901060106
+source: а
+key: 5e0901050105
+source: z
+key: 5b01050105
+source: 
+key: 0101
+source: 
+key: 0101
+source: 3
+key: 1a01050105
+source: y
+key: 5901050105
+source: i
+key: 3901050105
+source: k
+key: 3d01050105
+source: абг
+key: 2809131701070107
+source: абв
+key: 2809131501070107
+source: жжж
+key: 2833333301070107
+source: эюя
+key: 28cdd1d501070107
+source: абг
+key: 5e09131701070107
+source: абв
+key: 5e09131501070107
+source: жжж
+key: 5e33333301070107
+source: эюя
+key: 5ecdd1d501070107
diff --git a/ext/intl/tests/formatter_format3.phpt b/ext/intl/tests/formatter_format3.phpt
index d52d15999c3..b9d6eb5c3d5 100644
--- a/ext/intl/tests/formatter_format3.phpt
+++ b/ext/intl/tests/formatter_format3.phpt
@@ -1,8 +1,9 @@
 --TEST--
-numfmt_format() icu >= 52.1
+numfmt_format() icu >= 52.1 && icu < 53.1
 --SKIPIF--
 <?php if( !extension_loaded( 'intl' ) ) print 'skip'; ?>
-<?php if(version_compare(INTL_ICU_VERSION, '52.1') < 0) print 'skip'; ?>
+<?php if(version_compare(INTL_ICU_VERSION, '52.1') < 0) print 'skip for ICU >= 52.1'; ?>
+<?php if (version_compare(INTL_ICU_VERSION, '53.1') >=  0) die('skip for ICU < 53.1'); ?>
 --FILE--
 <?php
 
diff --git a/ext/intl/tests/formatter_format4.phpt b/ext/intl/tests/formatter_format4.phpt
new file mode 100644
index 00000000000..88d457bdb3d
--- /dev/null
+++ b/ext/intl/tests/formatter_format4.phpt
@@ -0,0 +1,130 @@
+--TEST--
+numfmt_format() icu >= 53.1
+--SKIPIF--
+<?php if( !extension_loaded( 'intl' ) ) print 'skip'; ?>
+<?php if (version_compare(INTL_ICU_VERSION, '53.1') < 0) die('skip for ICU >= 53.1'); ?>
+--FILE--
+<?php
+
+/*
+ * Format a number using misc locales/patterns.
+ */
+
+/*
+ * TODO: doesn't pass on ICU 3.6 because 'ru' and 'de' locales changed
+ * currency and percent formatting.
+ */
+
+function ut_main()
+{
+    $styles = array(
+        NumberFormatter::PATTERN_DECIMAL => '##.#####################',
+        NumberFormatter::DECIMAL => '',
+        NumberFormatter::CURRENCY => '',
+        NumberFormatter::PERCENT => '',
+        NumberFormatter::SCIENTIFIC => '',
+        NumberFormatter::SPELLOUT => '@@@@@@@',
+        NumberFormatter::ORDINAL => '',
+        NumberFormatter::DURATION => '',
+        NumberFormatter::PATTERN_RULEBASED => '#####.###',
+        1234999, // bad one
+    );
+
+   $integer = array(
+        NumberFormatter::ORDINAL => '',
+        NumberFormatter::DURATION => '',
+   );
+    $locales = array(
+        'en_US',
+        'ru_UA',
+        'de',
+        'fr',
+        'en_UK'
+    );
+
+    $str_res = '';
+    $number = 1234567.891234567890000;
+
+    foreach( $locales as $locale )
+    {
+        $str_res .= "\nLocale is: $locale\n";
+        foreach( $styles as $style => $pattern )
+        {
+            $fmt = ut_nfmt_create( $locale, $style, $pattern );
+
+			if(!$fmt) {
+				$str_res .= "Bad formatter!\n";
+				continue;
+			}
+            $str_res .= dump( isset($integer[$style])?ut_nfmt_format( $fmt, $number, NumberFormatter::TYPE_INT32):ut_nfmt_format( $fmt, $number ) ) . "\n";
+        }
+    }
+    return $str_res;
+}
+
+include_once( 'ut_common.inc' );
+
+// Run the test
+ut_run();
+
+?>
+--EXPECTREGEX--
+Locale is: en_US
+'1234567.89123457'
+'1,234,567.891'
+'\$1,234,567.89'
+'123,456,789%'
+'1.23456789123457E6'
+'one million,? two hundred (and )?thirty-four thousand,? five hundred (and )?sixty-seven point eight nine one two three four five seven'
+'1,234,567(th|ᵗʰ)'
+'342:56:07'
+'#####.###'
+'USD1,234,567.89'
+
+Locale is: ru_UA
+'1234567,89123457'
+'1 234 567,891'
+'1 234 567,89 ?(грн\.|₴)'
+'123 456 789 ?%'
+'1,23456789123457E6'
+'один миллион двести тридцать четыре тысяч пятьсот шестьдесят семь запятая восемь девять один два три четыре пять семь'
+'1 234 567.?'
+'1 234 567'
+'#####.###'
+'1 234 567,89 UAH'
+
+Locale is: de
+'1234567,89123457'
+'1.234.567,891'
+'(¤ )?1.234.567,89( ¤)?'
+'123\.456\.789 %'
+'1,23456789123457E6'
+'eine Million zwei­hundert­vier­und­dreißig­tausend­fünf­hundert­sieben­und­sechzig Komma acht neun eins zwei drei vier fünf sieben'
+'1.234.567.?'
+'1.234.567'
+'#####.###'
+'1.234.567,89 ¤¤'
+
+Locale is: fr
+'1234567,89123457'
+'1 234 567,891'
+'1 234 567,89 ¤'
+'123 456 789 ?%'
+'1,23456789123457E6'
+'un million deux cent trente-quatre mille cinq cent soixante-sept virgule huit neuf un deux trois quatre cinq sept'
+'1 234 567e'
+'1 234 567'
+'#####.###'
+'1 234 567,89 ¤¤'
+
+Locale is: en_UK
+'1234567.89123457'
+'1,234,567.891'
+'¤1,234,567.89'
+'123,456,789%'
+'1.23456789123457E6'
+'one million,? two hundred (and )?thirty-four thousand,? five hundred (and )?sixty-seven point eight nine one two three four five seven'
+'1,234,567(th|ᵗʰ)'
+'342:56:07'
+'#####.###'
+'¤¤1,234,567.89'
diff --git a/ext/intl/tests/locale_get_display_name4.phpt b/ext/intl/tests/locale_get_display_name4.phpt
index 470674997c2..4b3255c0f64 100644
--- a/ext/intl/tests/locale_get_display_name4.phpt
+++ b/ext/intl/tests/locale_get_display_name4.phpt
@@ -1,8 +1,9 @@
 --TEST--
-locale_get_display_name() icu >= 52.1
+locale_get_display_name() icu >= 52.1 && icu < 53.1
 --SKIPIF--
 <?php if( !extension_loaded( 'intl' ) ) print 'skip'; ?>
 <?php if (version_compare(INTL_ICU_VERSION, '52.1') < 0) die('skip for ICU >= 52.1'); ?>
+<?php if (version_compare(INTL_ICU_VERSION, '53.1') >=  0) die('skip for ICU < 53.1'); ?>
 --FILE--
 <?php
 
diff --git a/ext/intl/tests/locale_get_display_name5.phpt b/ext/intl/tests/locale_get_display_name5.phpt
new file mode 100644
index 00000000000..b633b1f62cd
--- /dev/null
+++ b/ext/intl/tests/locale_get_display_name5.phpt
@@ -0,0 +1,342 @@
+--TEST--
+locale_get_display_name() icu >= 53.1
+--SKIPIF--
+<?php if( !extension_loaded( 'intl' ) ) print 'skip'; ?>
+<?php if (version_compare(INTL_ICU_VERSION, '53.1') < 0) die('skip for ICU >= 53.1'); ?>
+--FILE--
+<?php
+
+/*
+ * Try getting the display_name for different locales
+ * with Procedural and Object methods.
+ */
+
+function ut_main()
+{
+    $res_str='';
+
+	$disp_locales=array('en','fr','de');
+
+    $locales = array(
+        'sl_IT_nedis_KIRTI',
+        'sl_IT_nedis-a-kirti-x-xyz',
+        'sl_IT_rozaj',
+        'sl_IT_NEDIS_ROJAZ_1901',
+        'i-enochian',
+        'zh-hakka',
+        'zh-wuu',
+        'i-tay',
+        'sgn-BE-nl',
+        'sgn-CH-de',
+        'sl_IT_rozaj@currency=EUR',
+        'uk-ua_CALIFORNIA@currency=;currency=GRN',
+        'root',
+        'uk@currency=EURO',
+        'Hindi',
+//Simple language subtag
+        'de',
+        'fr',
+        'ja',
+        'i-enochian', //(example of a grandfathered tag)
+//Language subtag plus Script subtag:
+        'zh-Hant',
+        'zh-Hans',
+        'sr-Cyrl',
+        'sr-Latn',
+//Language-Script-Region
+        'zh-Hans-CN',
+        'sr-Latn-CS',
+//Language-Variant
+        'sl-rozaj',
+        'sl-nedis',
+//Language-Region-Variant
+        'de-CH-1901',
+        'sl-IT-nedis',
+//Language-Script-Region-Variant
+        'sl-Latn-IT-nedis',
+//Language-Region:
+        'de-DE',
+        'en-US',
+        'es-419',
+//Private use subtags:
+        'de-CH-x-phonebk',
+        'az-Arab-x-AZE-derbend',
+//Extended language subtags
+        'zh-min',
+        'zh-min-nan-Hant-CN',
+//Private use registry values
+        'x-whatever',
+        'qaa-Qaaa-QM-x-southern',
+        'sr-Latn-QM',
+        'sr-Qaaa-CS',
+/*Tags that use extensions (examples ONLY: extensions MUST be defined
+   by revision or update to this document or by RFC): */
+        'en-US-u-islamCal',
+        'zh-CN-a-myExt-x-private',
+        'en-a-myExt-b-another',
+//Some Invalid Tags:
+        'de-419-DE',
+        'a-DE',
+        'ar-a-aaa-b-bbb-a-ccc'
+    );
+
+
+    $res_str = '';
+
+   	foreach( $locales as $locale )
+    {
+       	$res_str .= "locale='$locale'\n";
+   		foreach( $disp_locales as $disp_locale )
+    	{
+        	$scr = ut_loc_get_display_name( $locale ,$disp_locale );
+		$scr = str_replace(array('(', ')'), '#', $scr); 
+        	$res_str .= "disp_locale=$disp_locale :  display_name=$scr";
+        	$res_str .= "\n";
+		} 
+        $res_str .= "-----------------\n";
+    }
+
+    return $res_str;
+
+}
+
+include_once( 'ut_common.inc' );
+ut_run();
+
+?>
+--EXPECTREGEX--
+locale='sl_IT_nedis_KIRTI'
+disp_locale=en :  display_name=Slovenian #Italy, NEDIS_KIRTI#
+disp_locale=fr :  display_name=slovène #Italie, NEDIS_KIRTI#
+disp_locale=de :  display_name=Slowenisch #Italien, NEDIS_KIRTI#
+-----------------
+locale='sl_IT_nedis-a-kirti-x-xyz'
+disp_locale=en :  display_name=Slovenian #Italy, NEDIS_A_KIRTI_X_XYZ#
+disp_locale=fr :  display_name=slovène #Italie, NEDIS_A_KIRTI_X_XYZ#
+disp_locale=de :  display_name=Slowenisch #Italien, NEDIS_A_KIRTI_X_XYZ#
+-----------------
+locale='sl_IT_rozaj'
+disp_locale=en :  display_name=Slovenian #Italy, Resian#
+disp_locale=fr :  display_name=slovène #Italie, dialecte de Resia#
+disp_locale=de :  display_name=Slowenisch #Italien, (ROZAJ|Resianisch)#
+-----------------
+locale='sl_IT_NEDIS_ROJAZ_1901'
+disp_locale=en :  display_name=Slovenian #Italy, NEDIS_ROJAZ_1901#
+disp_locale=fr :  display_name=slovène #Italie, NEDIS_ROJAZ_1901#
+disp_locale=de :  display_name=Slowenisch #Italien, NEDIS_ROJAZ_1901#
+-----------------
+locale='i-enochian'
+disp_locale=en :  display_name=i-enochian #Private-Use=i-enochian#
+disp_locale=fr :  display_name=i-enochian #Usage privé=i-enochian#
+disp_locale=de :  display_name=i-enochian #Privatnutzung=i-enochian#
+-----------------
+locale='zh-hakka'
+disp_locale=en :  display_name=Chinese( #HAKKA#)?
+disp_locale=fr :  display_name=chinois( #HAKKA#)?
+disp_locale=de :  display_name=Chinesisch( #HAKKA#)?
+-----------------
+locale='zh-wuu'
+disp_locale=en :  display_name=Chinese #WUU#
+disp_locale=fr :  display_name=chinois #WUU#
+disp_locale=de :  display_name=Chinesisch #WUU#
+-----------------
+locale='i-tay'
+disp_locale=en :  display_name=i-tay
+disp_locale=fr :  display_name=i-tay
+disp_locale=de :  display_name=i-tay
+-----------------
+locale='sgn-BE-nl'
+disp_locale=en :  display_name=sgn #Belgium, NL#
+disp_locale=fr :  display_name=sgn #Belgique, NL#
+disp_locale=de :  display_name=sgn #Belgien, NL#
+-----------------
+locale='sgn-CH-de'
+disp_locale=en :  display_name=sgn #Switzerland, DE#
+disp_locale=fr :  display_name=sgn #Suisse, DE#
+disp_locale=de :  display_name=sgn #Schweiz, DE#
+-----------------
+locale='sl_IT_rozaj@currency=EUR'
+disp_locale=en :  display_name=Slovenian #Italy, Resian, [Cc]urrency=Euro#
+disp_locale=fr :  display_name=slovène #Italie, dialecte de Resia, [Dd]evise=euro#
+disp_locale=de :  display_name=Slowenisch #Italien, (ROZAJ|Resianisch), Währung=Euro#
+-----------------
+locale='uk-ua_CALIFORNIA@currency=;currency=GRN'
+disp_locale=en :  display_name=
+disp_locale=fr :  display_name=
+disp_locale=de :  display_name=
+-----------------
+locale='root'
+disp_locale=en :  display_name=Root
+disp_locale=fr :  display_name=racine
+disp_locale=de :  display_name=[Rr]oot
+-----------------
+locale='uk@currency=EURO'
+disp_locale=en :  display_name=Ukrainian #[Cc]urrency=EURO#
+disp_locale=fr :  display_name=ukrainien #[Dd]evise=EURO#
+disp_locale=de :  display_name=Ukrainisch #Währung=EURO#
+-----------------
+locale='Hindi'
+disp_locale=en :  display_name=hindi
+disp_locale=fr :  display_name=hindi
+disp_locale=de :  display_name=hindi
+-----------------
+locale='de'
+disp_locale=en :  display_name=German
+disp_locale=fr :  display_name=allemand
+disp_locale=de :  display_name=Deutsch
+-----------------
+locale='fr'
+disp_locale=en :  display_name=French
+disp_locale=fr :  display_name=français
+disp_locale=de :  display_name=Französisch
+-----------------
+locale='ja'
+disp_locale=en :  display_name=Japanese
+disp_locale=fr :  display_name=japonais
+disp_locale=de :  display_name=Japanisch
+-----------------
+locale='i-enochian'
+disp_locale=en :  display_name=i-enochian #Private-Use=i-enochian#
+disp_locale=fr :  display_name=i-enochian #Usage privé=i-enochian#
+disp_locale=de :  display_name=i-enochian #Privatnutzung=i-enochian#
+-----------------
+locale='zh-Hant'
+disp_locale=en :  display_name=Chinese #Traditional#
+disp_locale=fr :  display_name=chinois #traditionnel#
+disp_locale=de :  display_name=Chinesisch #Traditionell#
+-----------------
+locale='zh-Hans'
+disp_locale=en :  display_name=Chinese #Simplified#
+disp_locale=fr :  display_name=chinois #simplifié#
+disp_locale=de :  display_name=Chinesisch #Vereinfacht#
+-----------------
+locale='sr-Cyrl'
+disp_locale=en :  display_name=Serbian #Cyrillic#
+disp_locale=fr :  display_name=serbe #cyrillique#
+disp_locale=de :  display_name=Serbisch #Kyrillisch#
+-----------------
+locale='sr-Latn'
+disp_locale=en :  display_name=Serbian #Latin#
+disp_locale=fr :  display_name=serbe #latin#
+disp_locale=de :  display_name=Serbisch #Lateinisch#
+-----------------
+locale='zh-Hans-CN'
+disp_locale=en :  display_name=Chinese #Simplified, China#
+disp_locale=fr :  display_name=chinois #simplifié, Chine#
+disp_locale=de :  display_name=Chinesisch #Vereinfacht, China#
+-----------------
+locale='sr-Latn-CS'
+disp_locale=en :  display_name=Serbian #Latin, Serbia#
+disp_locale=fr :  display_name=serbe #latin, Serbie#
+disp_locale=de :  display_name=Serbisch #Lateinisch, Serbien#
+-----------------
+locale='sl-rozaj'
+disp_locale=en :  display_name=Slovenian #Resian#
+disp_locale=fr :  display_name=slovène #dialecte de Resia#
+disp_locale=de :  display_name=Slowenisch( #(ROZAJ|Resianisch)#)?
+-----------------
+locale='sl-nedis'
+disp_locale=en :  display_name=Slovenian #Natisone dialect#
+disp_locale=fr :  display_name=slovène #dialecte de Natisone#
+disp_locale=de :  display_name=Slowenisch #Natisone-Dialekt#
+-----------------
+locale='de-CH-1901'
+disp_locale=en :  display_name=German #Switzerland, Traditional German orthography#
+disp_locale=fr :  display_name=allemand #Suisse, orthographe allemande traditionnelle#
+disp_locale=de :  display_name=Deutsch #Schweiz, (1901|[aA]lte deutsche Rechtschreibung)#
+-----------------
+locale='sl-IT-nedis'
+disp_locale=en :  display_name=Slovenian #Italy, Natisone dialect#
+disp_locale=fr :  display_name=slovène #Italie, dialecte de Natisone#
+disp_locale=de :  display_name=Slowenisch #Italien, (NEDIS|Natisone-Dialekt)#
+-----------------
+locale='sl-Latn-IT-nedis'
+disp_locale=en :  display_name=Slovenian #Latin, Italy, Natisone dialect#
+disp_locale=fr :  display_name=slovène #latin, Italie, dialecte de Natisone#
+disp_locale=de :  display_name=Slowenisch #Lateinisch, Italien, (NEDIS|Natisone-Dialekt)#
+-----------------
+locale='de-DE'
+disp_locale=en :  display_name=German #Germany#
+disp_locale=fr :  display_name=allemand #Allemagne#
+disp_locale=de :  display_name=Deutsch #Deutschland#
+-----------------
+locale='en-US'
+disp_locale=en :  display_name=English #United States#
+disp_locale=fr :  display_name=anglais #États-Unis#
+disp_locale=de :  display_name=Englisch #Vereinigte Staaten#
+-----------------
+locale='es-419'
+disp_locale=en :  display_name=Spanish #Latin America#
+disp_locale=fr :  display_name=espagnol #Amérique latine#
+disp_locale=de :  display_name=Spanisch #Lateinamerika#
+-----------------
+locale='de-CH-x-phonebk'
+disp_locale=en :  display_name=German #Switzerland, Private-Use=phonebk#
+disp_locale=fr :  display_name=allemand #Suisse, Usage privé=phonebk#
+disp_locale=de :  display_name=Deutsch #Schweiz, Privatnutzung=phonebk#
+-----------------
+locale='az-Arab-x-AZE-derbend'
+disp_locale=en :  display_name=Azerbaijani #Arabic, Private-Use=aze-derbend#
+disp_locale=fr :  display_name=azéri #arabe, Usage privé=aze-derbend#
+disp_locale=de :  display_name=Aserbaidschanisch #Arabisch, Privatnutzung=aze-derbend#
+-----------------
+locale='zh-min'
+disp_locale=en :  display_name=Chinese #MIN#
+disp_locale=fr :  display_name=chinois #MIN#
+disp_locale=de :  display_name=Chinesisch #MIN#
+-----------------
+locale='zh-min-nan-Hant-CN'
+disp_locale=en :  display_name=Chinese #MIN, NAN_HANT_CN#
+disp_locale=fr :  display_name=chinois #MIN, NAN_HANT_CN#
+disp_locale=de :  display_name=Chinesisch #MIN, NAN_HANT_CN#
+-----------------
+locale='x-whatever'
+disp_locale=en :  display_name=x-whatever #Private-Use=whatever#
+disp_locale=fr :  display_name=x-whatever #Usage privé=whatever#
+disp_locale=de :  display_name=x-whatever #Privatnutzung=whatever#
+-----------------
+locale='qaa-Qaaa-QM-x-southern'
+disp_locale=en :  display_name=qaa #Qaaa, QM, Private-Use=southern#
+disp_locale=fr :  display_name=qaa #Qaaa, QM, Usage privé=southern#
+disp_locale=de :  display_name=qaa #Qaaa, QM, Privatnutzung=southern#
+-----------------
+locale='sr-Latn-QM'
+disp_locale=en :  display_name=Serbian #Latin, QM#
+disp_locale=fr :  display_name=serbe #latin, QM#
+disp_locale=de :  display_name=Serbisch #Lateinisch, QM#
+-----------------
+locale='sr-Qaaa-CS'
+disp_locale=en :  display_name=Serbian #Qaaa, Serbia#
+disp_locale=fr :  display_name=serbe #Qaaa, Serbie#
+disp_locale=de :  display_name=Serbisch #Qaaa, Serbien#
+-----------------
+locale='en-US-u-islamCal'
+disp_locale=en :  display_name=English #United States, attribute=islamcal#
+disp_locale=fr :  display_name=anglais #États-Unis, attribute=islamcal#
+disp_locale=de :  display_name=Englisch #Vereinigte Staaten, attribute=islamcal#
+-----------------
+locale='zh-CN-a-myExt-x-private'
+disp_locale=en :  display_name=Chinese #China, a=myext, Private-Use=private#
+disp_locale=fr :  display_name=chinois #Chine, a=myext, Usage privé=private#
+disp_locale=de :  display_name=Chinesisch #China, a=myext, Privatnutzung=private#
+-----------------
+locale='en-a-myExt-b-another'
+disp_locale=en :  display_name=English #a=myext, b=another#
+disp_locale=fr :  display_name=anglais #a=myext, b=another#
+disp_locale=de :  display_name=Englisch #a=myext, b=another#
+-----------------
+locale='de-419-DE'
+disp_locale=en :  display_name=German #Latin America, DE#
+disp_locale=fr :  display_name=allemand #Amérique latine, DE#
+disp_locale=de :  display_name=Deutsch #Lateinamerika, DE#
+-----------------
+locale='a-DE'
+disp_locale=en :  display_name=a #Germany#
+disp_locale=fr :  display_name=a #Allemagne#
+disp_locale=de :  display_name=a #Deutschland#
+-----------------
+locale='ar-a-aaa-b-bbb-a-ccc'
+disp_locale=en :  display_name=Arabic #a=aaa, b=bbb#
+disp_locale=fr :  display_name=arabe #a=aaa, b=bbb#
+disp_locale=de :  display_name=Arabisch #a=aaa, b=bbb#
+-----------------
diff --git a/ext/intl/tests/timezone_getCanonicalID_variant1.phpt b/ext/intl/tests/timezone_getCanonicalID_variant1.phpt
index 92a7f073784..d600792d7cf 100644
--- a/ext/intl/tests/timezone_getCanonicalID_variant1.phpt
+++ b/ext/intl/tests/timezone_getCanonicalID_variant1.phpt
@@ -1,9 +1,8 @@
 --TEST--
 IntlTimeZone::getCanonicalID(): second argument
 --SKIPIF--
-<?php
-if (!extension_loaded('intl'))
-	die('skip intl extension not enabled');
+<?php if (!extension_loaded('intl')) die('skip intl extension not enabled'); ?>
+<?php if (version_compare(INTL_ICU_VERSION, '53.1') >=  0) die('skip for ICU < 53.1'); ?>
 --FILE--
 <?php
 ini_set("intl.error_level", E_WARNING);
@@ -21,4 +20,4 @@ string(13) "Europe/Lisbon"
 bool(true)
 string(0) ""
 bool(false)
-==DONE==
\ No newline at end of file
+==DONE==
diff --git a/ext/intl/tests/timezone_getCanonicalID_variant1_2.phpt b/ext/intl/tests/timezone_getCanonicalID_variant1_2.phpt
new file mode 100644
index 00000000000..b60924332a2
--- /dev/null
+++ b/ext/intl/tests/timezone_getCanonicalID_variant1_2.phpt
@@ -0,0 +1,26 @@
+--TEST--
+IntlTimeZone::getCanonicalID(): second argument
+--SKIPIF--
+<?php if (!extension_loaded('intl')) die('skip intl extension not enabled'); ?>
+<?php if (version_compare(INTL_ICU_VERSION, '53.1') < 0) die('skip for ICU >= 53.1'); ?>
+--FILE--
+<?php
+ini_set("intl.error_level", E_WARNING);
+
+var_dump(IntlTimeZone::getCanonicalID('Portugal', $isSystemId));
+var_dump($isSystemId);
+
+/* A valid custom time zone ID has the following syntax: GMT[+|-]hh[[:]mm] */
+var_dump(IntlTimeZone::getCanonicalID('GMT +01:25', $isSystemId));
+var_dump($isSystemId);
+
+?>
+==DONE==
+--EXPECTF--
+string(13) "Europe/Lisbon"
+bool(true)
+
+Warning: IntlTimeZone::getCanonicalID(): intltz_get_canonical_id: error obtaining canonical ID in %stimezone_getCanonicalID_variant1_2.php on line %d
+bool(false)
+bool(true)
+==DONE==