Site Health: Improve the error message displayed when activating a plugin that requires a higher version of PHP or WordPress.

This adds some extra details to the message:

* The current PHP or WordPress version.
* The plugin's minimum required PHP or WordPress version.
* A link to the support documentation on how to update PHP.

Props stuffradio, johnbillion, garrett-eclipse, sabernhardt, williampatton, SergeyBiryukov.
Fixes #48245.

git-svn-id: https://develop.svn.wordpress.org/trunk@48172 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-admin/includes/plugin.php

@@ -1148,32 +1148,52 @@ function validate_plugin_requirements( $plugin ) {
 	$compatible_wp  = is_wp_version_compatible( $requirements['requires'] );
 	$compatible_php = is_php_version_compatible( $requirements['requires_php'] );
 
+	/* translators: %s: URL to Update PHP page. */
+	$php_update_message = '</p><p>' . sprintf(
+		__( '<a href="%s">Learn more about updating PHP</a>.' ),
+		esc_url( wp_get_update_php_url() )
+	);
+
+	$annotation = wp_get_update_php_annotation();
+
+	if ( $annotation ) {
+		$php_update_message .= '</p><p><em>' . $annotation . '</em>';
+	}
+
 	if ( ! $compatible_wp && ! $compatible_php ) {
 		return new WP_Error(
 			'plugin_wp_php_incompatible',
-			sprintf(
-				/* translators: %s: Plugin name. */
-				_x( '<strong>Error:</strong> Current WordPress and PHP versions do not meet minimum requirements for %s.', 'plugin' ),
-				$plugin_headers['Name']
-			)
+			'<p>' . sprintf(
+				/* translators: 1: Current WordPress version, 2: Current PHP version, 3: Plugin name, 4: Required WordPress version, 5: Required PHP version. */
+				_x( '<strong>Error:</strong> Current versions of WordPress (%1$s) and PHP (%2$s) do not meet minimum requirements for %3$s. The plugin requires WordPress %4$s and PHP %5$s.', 'plugin' ),
+				get_bloginfo( 'version' ),
+				phpversion(),
+				$plugin_headers['Name'],
+				$requirements['requires'],
+				$requirements['requires_php']
+			) . $php_update_message . '</p>'
 		);
 	} elseif ( ! $compatible_php ) {
 		return new WP_Error(
 			'plugin_php_incompatible',
-			sprintf(
-				/* translators: %s: Plugin name. */
-				_x( '<strong>Error:</strong> Current PHP version does not meet minimum requirements for %s.', 'plugin' ),
-				$plugin_headers['Name']
-			)
+			'<p>' . sprintf(
+				/* translators: 1: Current PHP version, 2: Plugin name, 3: Required PHP version. */
+				_x( '<strong>Error:</strong> Current PHP version (%1$s) does not meet minimum requirements for %2$s. The plugin requires PHP %3$s.', 'plugin' ),
+				phpversion(),
+				$plugin_headers['Name'],
+				$requirements['requires_php']
+			) . $php_update_message . '</p>'
 		);
 	} elseif ( ! $compatible_wp ) {
 		return new WP_Error(
 			'plugin_wp_incompatible',
-			sprintf(
-				/* translators: %s: Plugin name. */
-				_x( '<strong>Error:</strong> Current WordPress version does not meet minimum requirements for %s.', 'plugin' ),
-				$plugin_headers['Name']
-			)
+			'<p>' . sprintf(
+				/* translators: 1: Current WordPress version, 2: Plugin name, 3: Required WordPress version. */
+				_x( '<strong>Error:</strong> Current WordPress version (%1$s) does not meet minimum requirements for %2$s. The plugin requires WordPress %3$s.', 'plugin' ),
+				get_bloginfo( 'version' ),
+				$plugin_headers['Name'],
+				$requirements['requires']
+			) . '</p>'
 		);
 	}
 

src/wp-admin/includes/update-core.php

@@ -961,12 +961,17 @@ function update_core( $from, $to ) {
 	}
 
 	$php_update_message = '';
+
 	if ( function_exists( 'wp_get_update_php_url' ) ) {
 		/* translators: %s: URL to Update PHP page. */
-		$php_update_message = '</p><p>' . sprintf( __( '<a href="%s">Learn more about updating PHP</a>.' ), esc_url( wp_get_update_php_url() ) );
+		$php_update_message = '</p><p>' . sprintf(
+			__( '<a href="%s">Learn more about updating PHP</a>.' ),
+			esc_url( wp_get_update_php_url() )
+		);
 
 		if ( function_exists( 'wp_get_update_php_annotation' ) ) {
 			$annotation = wp_get_update_php_annotation();
+
 			if ( $annotation ) {
 				$php_update_message .= '</p><p><em>' . $annotation . '</em>';
 			}

src/wp-admin/install.php

@@ -240,22 +240,46 @@ $version_url = sprintf(
 );
 
 /* translators: %s: URL to Update PHP page. */
-$php_update_message = '</p><p>' . sprintf( __( '<a href="%s">Learn more about updating PHP</a>.' ), esc_url( wp_get_update_php_url() ) );
+$php_update_message = '</p><p>' . sprintf(
+	__( '<a href="%s">Learn more about updating PHP</a>.' ),
+	esc_url( wp_get_update_php_url() )
+);
 
 $annotation = wp_get_update_php_annotation();
+
 if ( $annotation ) {
 	$php_update_message .= '</p><p><em>' . $annotation . '</em>';
 }
 
 if ( ! $mysql_compat && ! $php_compat ) {
+	$compat = sprintf(
 		/* translators: 1: URL to WordPress release notes, 2: WordPress version number, 3: Minimum required PHP version number, 4: Minimum required MySQL version number, 5: Current PHP version number, 6: Current MySQL version number. */
-	$compat = sprintf( __( 'You cannot install because <a href="%1$s">WordPress %2$s</a> requires PHP version %3$s or higher and MySQL version %4$s or higher. You are running PHP version %5$s and MySQL version %6$s.' ), $version_url, $wp_version, $required_php_version, $required_mysql_version, $php_version, $mysql_version ) . $php_update_message;
+		__( 'You cannot install because <a href="%1$s">WordPress %2$s</a> requires PHP version %3$s or higher and MySQL version %4$s or higher. You are running PHP version %5$s and MySQL version %6$s.' ),
+		$version_url,
+		$wp_version,
+		$required_php_version,
+		$required_mysql_version,
+		$php_version,
+		$mysql_version
+	) . $php_update_message;
 } elseif ( ! $php_compat ) {
+	$compat = sprintf(
 		/* translators: 1: URL to WordPress release notes, 2: WordPress version number, 3: Minimum required PHP version number, 4: Current PHP version number. */
-	$compat = sprintf( __( 'You cannot install because <a href="%1$s">WordPress %2$s</a> requires PHP version %3$s or higher. You are running version %4$s.' ), $version_url, $wp_version, $required_php_version, $php_version ) . $php_update_message;
+		__( 'You cannot install because <a href="%1$s">WordPress %2$s</a> requires PHP version %3$s or higher. You are running version %4$s.' ),
+		$version_url,
+		$wp_version,
+		$required_php_version,
+		$php_version
+	) . $php_update_message;
 } elseif ( ! $mysql_compat ) {
+	$compat = sprintf(
 		/* translators: 1: URL to WordPress release notes, 2: WordPress version number, 3: Minimum required MySQL version number, 4: Current MySQL version number. */
-	$compat = sprintf( __( 'You cannot install because <a href="%1$s">WordPress %2$s</a> requires MySQL version %3$s or higher. You are running version %4$s.' ), $version_url, $wp_version, $required_mysql_version, $mysql_version );
+		__( 'You cannot install because <a href="%1$s">WordPress %2$s</a> requires MySQL version %3$s or higher. You are running version %4$s.' ),
+		$version_url,
+		$wp_version,
+		$required_mysql_version,
+		$mysql_version
+	);
 }
 
 if ( ! $mysql_compat || ! $php_compat ) {

src/wp-admin/update-core.php

@@ -88,6 +88,7 @@ function list_core_update( $update ) {
 			);
 
 			$annotation = wp_get_update_php_annotation();
+
 			if ( $annotation ) {
 				$php_update_message .= '</p><p><em>' . $annotation . '</em>';
 			}

src/wp-admin/upgrade.php

@@ -82,9 +82,13 @@ elseif ( ! $php_compat || ! $mysql_compat ) :
 	);
 
 	/* translators: %s: URL to Update PHP page. */
-	$php_update_message = '</p><p>' . sprintf( __( '<a href="%s">Learn more about updating PHP</a>.' ), esc_url( wp_get_update_php_url() ) );
+	$php_update_message = '</p><p>' . sprintf(
+		__( '<a href="%s">Learn more about updating PHP</a>.' ),
+		esc_url( wp_get_update_php_url() )
+	);
 
 	$annotation = wp_get_update_php_annotation();
+
 	if ( $annotation ) {
 		$php_update_message .= '</p><p><em>' . $annotation . '</em>';
 	}