Please apply the following diffs and create a pull request.
Once the PR is ready, give it a title based on the messages of the fixes being applied.

[{"message":"The printf format strings SOCKET_EXPR and FASTCGI_EXPR use %s placeholders but receive unquoted variables. While this works, it's fragile if version strings contain special characters. Consider using sed's standard delimiter replacement or properly quoting the variables in the printf calls.","fixFiles":[{"filePath":"scripts/update/php-update.sh","diff":"diff --git a/scripts/update/php-update.sh b/scripts/update/php-update.sh\n--- a/scripts/update/php-update.sh\n+++ b/scripts/update/php-update.sh\n@@ -135,12 +135,24 @@\n SOCKET_EXPR='s|(unix:/run/php/)php%s-fpm(\\.sock)|\\1php%s-fpm\\2|g'\n FASTCGI_EXPR='s|(fastcgi_pass[[:space:]]+[^;]*php)%s(-fpm)|\\1%s\\2|g'\n \n+# Escape text for use in sed extended regex pattern fragments.\n+sed_escape_ere() {\n+    printf '%s' \"$1\" | sed -e 's/[][(){}.^$*+?|\\\\]/\\\\&/g'\n+}\n+\n+# Escape text for use in sed replacement fragments.\n+sed_escape_replacement() {\n+    printf '%s' \"$1\" | sed -e 's/[&\\\\]/\\\\&/g'\n+}\n+\n # Update php-fpm.conf\n if [[ -f \"/etc/nginx/globals/php-fpm.conf\" ]]; then\n     for OLD_VER in \"${MIGRATION_SOURCE_PHP_VERS[@]}\"; do\n+        OLD_VER_ERE=\"$(sed_escape_ere \"$OLD_VER\")\"\n+        NEW_PHP_VER_REPL=\"$(sed_escape_replacement \"$NEW_PHP_VER\")\"\n         sed -E -i \\\n-            -e \"$(printf \"$SOCKET_EXPR\" \"$OLD_VER\" \"$NEW_PHP_VER\")\" \\\n-            -e \"$(printf \"$FASTCGI_EXPR\" \"$OLD_VER\" \"$NEW_PHP_VER\")\" \\\n+            -e \"$(printf \"$SOCKET_EXPR\" \"$OLD_VER_ERE\" \"$NEW_PHP_VER_REPL\")\" \\\n+            -e \"$(printf \"$FASTCGI_EXPR\" \"$OLD_VER_ERE\" \"$NEW_PHP_VER_REPL\")\" \\\n             \"/etc/nginx/globals/php-fpm.conf\"\n     done\n fi\n@@ -149,7 +157,9 @@\n for config_file in /etc/nginx/sites-available/*; do\n     if [[ -f \"$config_file\" ]]; then\n         for OLD_VER in \"${MIGRATION_SOURCE_PHP_VERS[@]}\"; do\n-            sed -E -i -e \"/^[[:space:]]*fastcgi_pass[[:space:]]+/ $(printf \"$FASTCGI_EXPR\" \"$OLD_VER\" \"$NEW_PHP_VER\")\" \"$config_file\"\n+            OLD_VER_ERE=\"$(sed_escape_ere \"$OLD_VER\")\"\n+            NEW_PHP_VER_REPL=\"$(sed_escape_replacement \"$NEW_PHP_VER\")\"\n+            sed -E -i -e \"/^[[:space:]]*fastcgi_pass[[:space:]]+/ $(printf \"$FASTCGI_EXPR\" \"$OLD_VER_ERE\" \"$NEW_PHP_VER_REPL\")\" \"$config_file\"\n         done\n     fi\n done\n"}]},{"message":"The sed command has incorrect syntax. The `-e` flag is followed by a space before the pattern, which causes the command substitution result to be treated as a separate argument rather than part of the expression. Remove the space after `-e` or the `-e` flag entirely since only one expression is being used.","fixFiles":[{"filePath":"scripts/update/php-update.sh","diff":"diff --git a/scripts/update/php-update.sh b/scripts/update/php-update.sh\n--- a/scripts/update/php-update.sh\n+++ b/scripts/update/php-update.sh\n@@ -149,7 +149,7 @@\n for config_file in /etc/nginx/sites-available/*; do\n     if [[ -f \"$config_file\" ]]; then\n         for OLD_VER in \"${MIGRATION_SOURCE_PHP_VERS[@]}\"; do\n-            sed -E -i -e \"/^[[:space:]]*fastcgi_pass[[:space:]]+/ $(printf \"$FASTCGI_EXPR\" \"$OLD_VER\" \"$NEW_PHP_VER\")\" \"$config_file\"\n+            sed -E -i -e \"/^[[:space:]]*fastcgi_pass[[:space:]]+/$(printf \"$FASTCGI_EXPR\" \"$OLD_VER\" \"$NEW_PHP_VER\")\" \"$config_file\"\n         done\n     fi\n done\n"}]},{"message":"The install-state.conf file update assumes the file exists when appending in the else branch. If the file or directory doesn't exist, the echo command will fail. Add a check to create the directory and file if they don't exist before attempting to write.","fixFiles":[{"filePath":"scripts/update/php-update.sh","diff":"diff --git a/scripts/update/php-update.sh b/scripts/update/php-update.sh\n--- a/scripts/update/php-update.sh\n+++ b/scripts/update/php-update.sh\n@@ -185,6 +185,8 @@\n STATUS=\"$(systemctl is-active \"php${NEW_PHP_VER}-fpm\")\"\n if [[ \"${STATUS}\" == \"active\" ]]; then\n     echo \"PASSED: PHP ${NEW_PHP_VER} is running.\"\n+    mkdir -p /etc/enginescript\n+    touch /etc/enginescript/install-state.conf\n     if grep -q '^PHP=' /etc/enginescript/install-state.conf; then\n         sed -i 's/^PHP=.*/PHP=1/' /etc/enginescript/install-state.conf\n     else\n"}]}]