diff --git a/src/scripts/darwin.sh b/src/scripts/darwin.sh
index 65cd91fd7..d1699cc7f 100644
--- a/src/scripts/darwin.sh
+++ b/src/scripts/darwin.sh
@@ -57,25 +57,48 @@ add_brew_extension() {
   if check_extension "$extension"; then
     add_log "${tick:?}" "$extension" "Enabled"
   else
-    brew_opts=(-f)
     add_brew_tap "$php_tap"
     add_brew_tap "$ext_tap"
-    if [ "${ts:?}" = "zts" ]; then
-      brew_opts=(-sf)
-      suffix="$(get_php_formula_suffix)"
-      abstract_path="$tap_dir"/"$ext_tap"/Abstract/abstract-php-extension.rb
-      if [ -f "$abstract_path" ]; then
-        grep -q zts "$abstract_path" || sed -i '' "s/php@${version}/php@${version}$suffix/" "$abstract_path"
-      fi
-    fi
     sudo mv "$tap_dir"/"$ext_tap"/.github/deps/"$formula"/* "${core_repo:?}/Formula/" 2>/dev/null || true
     update_dependencies >/dev/null 2>&1
     disable_dependency_extensions "$extension" >/dev/null 2>&1
+    handle_dependency_extensions_for_zts >/dev/null 2>&1
     (brew install "${brew_opts[@]}" "$ext_tap/$formula@$version" >/dev/null 2>&1 && copy_brew_extensions "$formula") || pecl_install "$extension" >/dev/null 2>&1
     add_extension_log "$extension" "Installed and enabled"
   fi
 }
 
+# Install dependency extensions if the PHP version is ZTS.
+handle_dependency_extensions_for_zts() {
+  if [ "${ts:?}" = "zts" ]; then
+    brew_opts=(-sf)
+    suffix="$(get_php_formula_suffix)"
+    abstract_path="$tap_dir"/"$ext_tap"/Abstract/abstract-php-extension.rb
+    if [ -e "$abstract_path" ] && ! grep -q zts "$abstract_path"; then
+        sudo sed -i '' -e "s|php@#{\(.*\)}|php@#{\1}$suffix|g" -e "s|php_version /|\"#{php_version}$suffix\" /|g" "$abstract_path"
+    fi
+    dependency_extensions=()
+    while IFS= read -r dependency_extension; do
+      dependency_extensions+=("$dependency_extension")
+    done < <(grep -E "depends_on.*shivammathur/extensions" "$formula_file" | sed -E 's/.*\/([^@]+)@.*/\1/')
+    for dependency_extension in "${dependency_extensions[@]}"; do
+        brew install "${brew_opts[@]}" "$ext_tap/$dependency_extension@$version" >/dev/null 2>&1 && copy_brew_extensions "$dependency_extension"
+    done
+  fi
+}
+
+configure_ext_tap_for_zts() {
+  if [[ -z "$suffix" ]]; then
+    brew_opts=(-sf)
+    suffix="$(get_php_formula_suffix)"
+    abstract_path="$tap_dir"/"$ext_tap"/Abstract/abstract-php-extension.rb
+    if [ -e "$abstract_path" ]; then
+        sudo sed -i '' "s|php@#{\(.*\)}|php@#{\1}$suffix|g" "$abstract_path"
+        sudo sed -i '' "s|php_version /|\"#{php_version}$suffix\" /|g" "$abstract_path"
+    fi
+  fi
+}
+
 # Helper function to add an extension.
 add_extension_helper() {
   local extension=$1
diff --git a/src/scripts/tools/brew.sh b/src/scripts/tools/brew.sh
index efddc9fc1..ed808a991 100644
--- a/src/scripts/tools/brew.sh
+++ b/src/scripts/tools/brew.sh
@@ -62,6 +62,7 @@ configure_brew() {
     add_brew
     brew_path="$(command -v brew)"
   fi
+  brew_opts=(-f)
   brew_path_dir="$(dirname "$brew_path")"
   brew_prefix="$brew_path_dir"/..
   brew_repo="$brew_path_dir/$(dirname "$(readlink "$brew_path")")"/..
@@ -74,6 +75,7 @@ configure_brew() {
   export HOMEBREW_NO_ENV_HINTS=1
   export HOMEBREW_NO_INSTALL_CLEANUP=1
   export HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK=1
+  export brew_opts
   export brew_path
   export brew_path_dir
   export brew_prefix