Use version_compare directly

The built in wp functions for this are too new (Added in 5.2)

Author: mrsdizzie

src/Plugin_Command.php

@@ -582,6 +582,7 @@ public function path( $args, $assoc_args ) {
 	}
 
 	protected function install_from_repo( $slug, $assoc_args ) {
+		global $wp_version;
 		$api = plugins_api( 'plugin_information', array( 'slug' => $slug ) );
 
 		if ( is_wp_error( $api ) ) {
@@ -594,8 +595,8 @@ protected function install_from_repo( $slug, $assoc_args ) {
 			$requires_php = isset( $api->requires_php ) ? $api->requires_php : null;
 			$requires_wp  = isset( $api->requires ) ? $api->requires : null;
 
-			$compatible_php = is_php_version_compatible( $requires_php );
-			$compatible_wp  = is_wp_version_compatible( $requires_wp );
+			$compatible_php = empty( $requires_php ) || version_compare( PHP_VERSION, $requires_php, '>=' );
+			$compatible_wp  = empty( $requires_wp ) || version_compare( $wp_version, $requires_wp, '>=' );
 
 			if ( ! $compatible_wp ) {
 				return new WP_Error( 'requirements_not_met', "This plugin does not work with your version of WordPress. Minimum WordPress requirement is $requires_wp" );

src/Theme_Command.php

@@ -395,6 +395,7 @@ public function path( $args, $assoc_args ) {
 	}
 
 	protected function install_from_repo( $slug, $assoc_args ) {
+		global $wp_version;
 		$api = themes_api( 'theme_information', array( 'slug' => $slug ) );
 
 		if ( is_wp_error( $api ) ) {
@@ -407,8 +408,8 @@ protected function install_from_repo( $slug, $assoc_args ) {
 			$requires_php = isset( $api->requires_php ) ? $api->requires_php : null;
 			$requires_wp  = isset( $api->requires ) ? $api->requires : null;
 
-			$compatible_php = is_php_version_compatible( $requires_php );
-			$compatible_wp  = is_wp_version_compatible( $requires_wp );
+			$compatible_php = empty( $requires_php ) || version_compare( PHP_VERSION, $requires_php, '>=' );
+			$compatible_wp  = empty( $requires_wp ) || version_compare( $wp_version, $requires_wp, '>=' );
 
 			if ( ! $compatible_wp ) {
 				return new WP_Error( 'requirements_not_met', "This theme does not work with your version of WordPress. Minimum WordPress requirement is $requires_wp" );