From eb3f4208485fe8958c64e7d5b6ab510abc979bdb Mon Sep 17 00:00:00 2001
From: Sergey Biryukov <sergeybiryukov.ru@gmail.com>
Date: Fri, 20 Sep 2019 22:02:57 +0000
Subject: [PATCH] Code Modernization: Remove all code using a
 `version_compare()` with a PHP version older than PHP 5.6.

Props jrf.
Fixes #48074.
Built from https://develop.svn.wordpress.org/trunk@46214


git-svn-id: http://core.svn.wordpress.org/trunk@46026 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 wp-includes/class-wp-customize-manager.php |  7 -------
 wp-includes/class-wp-locale.php            |  9 ++-------
 wp-includes/formatting.php                 | 16 +++-------------
 wp-includes/functions.php                  |  7 +------
 wp-includes/version.php                    |  2 +-
 5 files changed, 7 insertions(+), 34 deletions(-)

diff --git a/wp-includes/class-wp-customize-manager.php b/wp-includes/class-wp-customize-manager.php
index 2636489bea..e1ca84fb15 100644
--- a/wp-includes/class-wp-customize-manager.php
+++ b/wp-includes/class-wp-customize-manager.php
@@ -1376,13 +1376,6 @@ final class WP_Customize_Manager {
 						)
 					);
 
-					// In PHP < 5.6 filesize() returns 0 for the temp files unless we clear the file status cache.
-					// Technically, PHP < 5.6.0 || < 5.5.13 || < 5.4.29 but no need to be so targeted.
-					// See https://bugs.php.net/bug.php?id=65701
-					if ( version_compare( PHP_VERSION, '5.6', '<' ) ) {
-						clearstatcache();
-					}
-
 					$attachment_id = media_handle_sideload( $file_array, 0, null, $attachment_post_data );
 					if ( is_wp_error( $attachment_id ) ) {
 						continue;
diff --git a/wp-includes/class-wp-locale.php b/wp-includes/class-wp-locale.php
index 8582964a07..875a061568 100644
--- a/wp-includes/class-wp-locale.php
+++ b/wp-includes/class-wp-locale.php
@@ -199,13 +199,8 @@ class WP_Locale {
 		/* translators: $thousands_sep argument for https://secure.php.net/number_format, default is ',' */
 		$thousands_sep = __( 'number_format_thousands_sep' );
 
-		if ( version_compare( PHP_VERSION, '5.4', '>=' ) ) {
-			// Replace space with a non-breaking space to avoid wrapping.
-			$thousands_sep = str_replace( ' ', '&nbsp;', $thousands_sep );
-		} else {
-			// PHP < 5.4.0 does not support multiple bytes in thousands separator.
-			$thousands_sep = str_replace( array( '&nbsp;', '&#160;' ), ' ', $thousands_sep );
-		}
+		// Replace space with a non-breaking space to avoid wrapping.
+		$thousands_sep = str_replace( ' ', '&nbsp;', $thousands_sep );
 
 		$this->number_format['thousands_sep'] = ( 'number_format_thousands_sep' === $thousands_sep ) ? ',' : $thousands_sep;
 
diff --git a/wp-includes/formatting.php b/wp-includes/formatting.php
index 5d0ab841d3..c1d1d581cb 100644
--- a/wp-includes/formatting.php
+++ b/wp-includes/formatting.php
@@ -5572,15 +5572,10 @@ function _print_emoji_detection_script() {
  * @return string The encoded content.
  */
 function wp_encode_emoji( $content ) {
-	$emoji  = _wp_emoji_list( 'partials' );
-	$compat = version_compare( phpversion(), '5.4', '<' );
+	$emoji = _wp_emoji_list( 'partials' );
 
 	foreach ( $emoji as $emojum ) {
-		if ( $compat ) {
-			$emoji_char = html_entity_decode( $emojum, ENT_COMPAT, 'UTF-8' );
-		} else {
-			$emoji_char = html_entity_decode( $emojum );
-		}
+		$emoji_char = html_entity_decode( $emojum );
 		if ( false !== strpos( $content, $emoji_char ) ) {
 			$content = preg_replace( "/$emoji_char/", $emojum, $content );
 		}
@@ -5616,14 +5611,9 @@ function wp_staticize_emoji( $text ) {
 
 	// Quickly narrow down the list of emoji that might be in the text and need replacing.
 	$possible_emoji = array();
-	$compat         = version_compare( phpversion(), '5.4', '<' );
 	foreach ( $emoji as $emojum ) {
 		if ( false !== strpos( $text, $emojum ) ) {
-			if ( $compat ) {
-				$possible_emoji[ $emojum ] = html_entity_decode( $emojum, ENT_COMPAT, 'UTF-8' );
-			} else {
-				$possible_emoji[ $emojum ] = html_entity_decode( $emojum );
-			}
+			$possible_emoji[ $emojum ] = html_entity_decode( $emojum );
 		}
 	}
 
diff --git a/wp-includes/functions.php b/wp-includes/functions.php
index c5f98e5c38..d3dded8078 100644
--- a/wp-includes/functions.php
+++ b/wp-includes/functions.php
@@ -6004,12 +6004,7 @@ function wp_allowed_protocols() {
 function wp_debug_backtrace_summary( $ignore_class = null, $skip_frames = 0, $pretty = true ) {
 	static $truncate_paths;
 
-	if ( version_compare( PHP_VERSION, '5.2.5', '>=' ) ) {
-		$trace = debug_backtrace( false );
-	} else {
-		$trace = debug_backtrace();
-	}
-
+	$trace       = debug_backtrace( false );
 	$caller      = array();
 	$check_class = ! is_null( $ignore_class );
 	$skip_frames++; // skip this function
diff --git a/wp-includes/version.php b/wp-includes/version.php
index e23dbd4672..492dfd3d32 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.3-alpha-46213';
+$wp_version = '5.3-alpha-46214';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.