From 61bec735551f4793c3fee66a1ae61b8c1666c1f6 Mon Sep 17 00:00:00 2001
From: Arnaud Hours <arnaud.hours@lengow.com>
Date: Thu, 5 Feb 2026 16:22:51 +0100
Subject: [PATCH] fix(export): use built in fputcsv function to export csv rows

---
 includes/class-lengow-feed.php | 24 +++++++++++++++---------
 1 file changed, 15 insertions(+), 9 deletions(-)

diff --git a/includes/class-lengow-feed.php b/includes/class-lengow-feed.php
index 63c5bae2..24e1986f 100755
--- a/includes/class-lengow-feed.php
+++ b/includes/class-lengow-feed.php
@@ -202,13 +202,18 @@ private function get_header( $data ) {
 		switch ( $this->format ) {
 			case self::FORMAT_CSV:
 			default:
-				$header = '';
+				$formatted_data = array();
 				foreach ( $data as $field ) {
-					$header .= self::PROTECTION . self::format_fields( $field, self::FORMAT_CSV, $this->legacy )
-								. self::PROTECTION . self::CSV_SEPARATOR;
+					$formatted_data[] = self::format_fields( $field, self::FORMAT_CSV, $this->legacy );
 				}
 
-				return rtrim( $header, self::CSV_SEPARATOR ) . self::EOL;
+				$handle = fopen( 'php://memory', 'r+' );
+				fputcsv( $handle, $formatted_data, self::CSV_SEPARATOR, self::PROTECTION );
+				rewind( $handle );
+				$header = stream_get_contents( $handle );
+				fclose( $handle );
+
+				return rtrim( $header ) . self::EOL;
 			case self::FORMAT_XML:
 				return '<?xml version="1.0" encoding="UTF-8"?>' . self::EOL
 						. '<catalog>' . self::EOL;
@@ -232,12 +237,13 @@ private function get_body( $data, $is_first, $max_character ) {
 		switch ( $this->format ) {
 			case self::FORMAT_CSV:
 			default:
-				$content = '';
-				foreach ( $data as $value ) {
-					$content .= self::PROTECTION . $value . self::PROTECTION . self::CSV_SEPARATOR;
-				}
+				$handle = fopen( 'php://memory', 'r+' );
+				fputcsv( $handle, $data, self::CSV_SEPARATOR, self::PROTECTION );
+				rewind( $handle );
+				$content = stream_get_contents( $handle );
+				fclose( $handle );
 
-				return rtrim( $content, self::CSV_SEPARATOR ) . self::EOL;
+				return rtrim( $content ) . self::EOL;
 			case self::FORMAT_XML:
 				$content = '<product>';
 				foreach ( $data as $field => $value ) {