Issue #3404084: add pcov and fix docker-php-ext-enable (8.2)

- pcov extension is not enabled by default
- use `docker-php-ext-enable pcov` to enable it
- add xdebug

php/8.2-apache/Dockerfile

@@ -125,8 +125,8 @@ RUN set -xe &&\
     make install &&\
     cd / && rm -fr "$buildDir"
 
-# install pecl extensions for apcu, xdebug, and yaml
-RUN pecl install APCu-5.1.23 yaml-2.2.3 \
+# install pecl extensions for apcu, pcov, xdebug, and yaml
+RUN pecl install APCu-5.1.23 pcov-1.0.11 xdebug-3.3.2 yaml-2.2.3 \
     &&\
 # stript .debug files out of executables
     echo '\

php/8.2-apache/docker-php-ext-enable

@@ -58,7 +58,7 @@ if [ -z "$modules" ]; then
 fi
 
 for module in $modules; do
-	if nm -g "$module" | grep -q ' zend_extension_entry$'; then
+	if [ -z "$(php -dzend_extension="$module" -v 2>&1 >/dev/null)" ]; then
 		# https://wiki.php.net/internals/extensions#loading_zend_extensions
 		line="zend_extension=$(readlink -f "$module")"
 	else