diff --git a/docker/attributes.sh b/docker/attributes.sh
index 771037f..1ea69fb 100755
--- a/docker/attributes.sh
+++ b/docker/attributes.sh
@@ -18,38 +18,38 @@ export OPEN_SEARCH_HOST=${OPEN_SEARCH_HOST:-"http://localhost:80"}
 
 # Replace the 'config.php' script, which contains the most common search engine configurations, with these environment setups
 # These environment setups can be found in 'config.php', and the default configurations can be useful for most use cases
-export CONFIG_GOOGLE_DOMAIN="${CONFIG_GOOGLE_DOMAIN:-'.com'}"
-export CONFIG_GOOGLE_LANGUAGUE="${CONFIG_GOOGLE_LANGUAGUE:-'en'}"
-export CONFIG_INVIDIOUS_INSTANCE="${CONFIG_INVIDIOUS_INSTANCE:-'invidious.namazso.eu'}"
+export CONFIG_GOOGLE_DOMAIN=${CONFIG_GOOGLE_DOMAIN:-".com"}
+export CONFIG_GOOGLE_LANGUAGUE=${CONFIG_GOOGLE_LANGUAGUE:-"en"}
+export CONFIG_INVIDIOUS_INSTANCE=${CONFIG_INVIDIOUS_INSTANCE:-"invidious.namazso.eu"}
 export CONFIG_HIDDEN_SERVICE_SEARCH=${CONFIG_HIDDEN_SERVICE_SEARCH:-false}
 export CONFIG_DISABLE_BITTORRENT_SEARCH=${CONFIG_DISABLE_BITTORRENT_SEARCH:-false}
-export CONFIG_BITTORRENT_TRACKERS="${CONFIG_BITTORRENT_TRACKERS:-'&tr=http://nyaa.tracker.wf:7777/announce&tr=udp://open.stealth.si:80/announce&tr=udp://tracker.opentrackr.org:1337/announce&tr=udp://exodus.desync.com:6969/announce&tr=udp://tracker.torrent.eu.org:451/announce'}"
+export CONFIG_BITTORRENT_TRACKERS=${CONFIG_BITTORRENT_TRACKERS:-"&tr=http://nyaa.tracker.wf:7777/announce&tr=udp://open.stealth.si:80/announce&tr=udp://tracker.opentrackr.org:1337/announce&tr=udp://exodus.desync.com:6969/announce&tr=udp://tracker.torrent.eu.org:451/announce"}
 
 # Supported apps integration configuration. These empty spaces can be set up using free hosts as pointers
 # A particular example is using the "https://yewtu.be" or a self-hosted host to integrate the invidious app to librex
-export APP_INVIDIOUS="${APP_INVIDIOUS:-''}"
-export APP_BIBLIOGRAM="${APP_BIBLIOGRAM:-''}"
-export APP_RIMGO="${APP_RIMGO:-''}"
-export APP_SCRIBE="${APP_SCRIBE:-''}"
-export APP_LIBRARIAN="${APP_LIBRARIAN:-''}"
-export APP_GOTHUB="${APP_GOTHUB:-''}"
-export APP_NITTER="${APP_NITTER:-''}"
-export APP_LIBREREDDIT="${APP_LIBREREDDIT:-''}"
-export APP_PROXITOK="${APP_PROXITOK:-''}"
-export APP_WIKILESS="${APP_WIKILESS:-''}"
-export APP_QUETRE="${APP_QUETRE:-''}"
-export APP_LIBREMDB="${APP_LIBREMDB:-''}"
-export APP_BREEZEWIKI="${APP_BREEZEWIKI:-''}"
-export APP_ANONYMOUS_OVERFLOW="${APP_ANONYMOUS_OVERFLOW:-''}"
+export APP_INVIDIOUS=${APP_INVIDIOUS:-""}
+export APP_BIBLIOGRAM=${APP_BIBLIOGRAM:-""}
+export APP_RIMGO=${APP_RIMGO:-""}
+export APP_SCRIBE=${APP_SCRIBE:-""}
+export APP_LIBRARIAN=${APP_LIBRARIAN:-""}
+export APP_GOTHUB=${APP_GOTHUB:-""}
+export APP_NITTER=${APP_NITTER:-""}
+export APP_LIBREREDDIT=${APP_LIBREREDDIT:-""}
+export APP_PROXITOK=${APP_PROXITOK:-""}
+export APP_WIKILESS=${APP_WIKILESS:-""}
+export APP_QUETRE=${APP_QUETRE:-""}
+export APP_LIBREMDB=${APP_LIBREMDB:-""}
+export APP_BREEZEWIKI=${APP_BREEZEWIKI:-""}
+export APP_ANONYMOUS_OVERFLOW=${APP_ANONYMOUS_OVERFLOW:-""}
 
 # GNU/Curl configurations. Leave 'CURLOPT_PROXY' blank whether you don't need to use a proxy for requests
 # Generally, a proxy is needed when your IP address is blocked by search engines in response to multiple requests within a short time frame. In these cases, it is recommended to use rotating proxies
 export CURLOPT_PROXY_ENABLED=${CURLOPT_PROXY_ENABLED:-false}
-export CURLOPT_PROXY="${CURLOPT_PROXY:-''}"
+export CURLOPT_PROXY=${CURLOPT_PROXY:-""}
 export CURLOPT_RETURNTRANSFER=${CURLOPT_RETURNTRANSFER:-true}
-export CURLOPT_ENCODING="${CURLOPT_ENCODING:-''}"
-export CURLOPT_USERAGENT="${CURLOPT_USERAGENT:-'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36'}"
-export CURLOPT_CUSTOMREQUEST="${CURLOPT_CUSTOMREQUEST:-'GET'}"
+export CURLOPT_ENCODING=${CURLOPT_ENCODING:-""}
+export CURLOPT_USERAGENT=${CURLOPT_USERAGENT:-"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36"}
+export CURLOPT_CUSTOMREQUEST=${CURLOPT_CUSTOMREQUEST:-"GET"}
 export CURLOPT_MAXREDIRS=${CURLOPT_MAXREDIRS:-5}
 export CURLOPT_TIMEOUT=${CURLOPT_TIMEOUT:-18}
 export CURLOPT_VERBOSE=${CURLOPT_VERBOSE:-false}
diff --git a/docker/php/prepare.sh b/docker/php/prepare.sh
index a327b22..0809fd1 100755
--- a/docker/php/prepare.sh
+++ b/docker/php/prepare.sh
@@ -7,3 +7,11 @@ source "docker/attributes.sh"
 # Although not recommended (if you do not know what you are doing), you still have the option to add new substitution file templates using any required environment variables
 [[ ! -s ${CONFIG_PHP_TEMPLATE} ]] && cat 'docker/php/config.php' | envsubst | AwkTrim > ${CONFIG_PHP_TEMPLATE};
 [[ ! -s ${CONFIG_OPEN_SEARCH_TEMPLATE} ]] && cat 'docker/php/opensearch.xml' | envsubst | AwkTrim > ${CONFIG_OPEN_SEARCH_TEMPLATE};
+
+# If it is empty or proxy is not enabled, we are using sed to delete
+# any line that contains the string 'CURLOPT_PROXY' or 'CURLOPT_PROXYTYPE'
+# from the file 'config.php' defined on top of 'attributes.sh'
+if [[ -z "${CURLOPT_PROXY}" || "${CURLOPT_PROXY_ENABLED}" = false ]]; then
+    sed -i "/CURLOPT_PROXY/d" ${CONFIG_PHP_TEMPLATE};
+    sed -i "/CURLOPT_PROXYTYPE/d" ${CONFIG_PHP_TEMPLATE};
+fi