Archive script: tcpdf_fonts Warning

webteam-mh · November 5, 2019, 9:21am

When we ran the archiving script, we received the following warnings within a second (output formatted):

Log excerpt

WARNING [2019-11-05 08:11:26] 8048 /var/www/matomo/vendor/tecnickcom/tcpdf/include/tcpdf_fonts.php(2001): Warning - array_map(): Expected parameter 2 to be an array, bool given
WARNING [2019-11-05 08:11:26] 8048 /var/www/matomo/vendor/tecnickcom/tcpdf/include/tcpdf_fonts.php(2009): Warning - array_merge(): Expected parameter 2 to be an array, null given
WARNING [2019-11-05 08:11:26] 8048 /var/www/matomo/vendor/tecnickcom/tcpdf/include/tcpdf_fonts.php(1799): Warning - count(): Parameter must be an array or an object that implements Countable
WARNING [2019-11-05 08:11:26] 8048 /var/www/matomo/vendor/tecnickcom/tcpdf/tcpdf.php(5236): Warning - count(): Parameter must be an array or an object that implements Countable
WARNING [2019-11-05 08:11:26] 8048 /var/www/matomo/vendor/tecnickcom/tcpdf/include/tcpdf_fonts.php(2001): Warning - array_map(): Expected parameter 2 to be an array, bool given
WARNING [2019-11-05 08:11:26] 8048 /var/www/matomo/vendor/tecnickcom/tcpdf/include/tcpdf_fonts.php(2009): Warning - array_merge(): Expected parameter 1 to be an array, null given
WARNING [2019-11-05 08:11:26] 8048 /var/www/matomo/vendor/tecnickcom/tcpdf/tcpdf.php(4061): Warning - Invalid argument supplied for foreach()
WARNING [2019-11-05 08:11:26] 8048 /var/www/matomo/vendor/tecnickcom/tcpdf/include/tcpdf_fonts.php(2009): Warning - array_merge(): Expected parameter 1 to be an array, null given
…
WARNING [2019-11-05 08:11:27] 8048 /var/www/matomo/vendor/tecnickcom/tcpdf/include/tcpdf_fonts.php(2009): Warning - array_merge(): Expected parameter 1 to be an array, null given

Matomo 3.12.0
PHP 7.3.11
CentOS 7.7.1908

Lukas · November 5, 2019, 9:56am

Seems like this function is at fault.
But honestly I have no idea why it doesn’t work (there are many strange things in the tcpdf code) and why it breaks only for you (do you by chance have an “uncommon” language on your system?)

github.com

tecnickcom/TCPDF/blob/9fde7bb9b404b945e7ea88fb7eccd23d9a4e324b/include/tcpdf_fonts.php#L1988-L2013


	/**
	 * Converts UTF-8 strings to codepoints array.<br>
	 * Invalid byte sequences will be replaced with 0xFFFD (replacement character)<br>
	 * @param $str (string) string to process.
	 * @param $isunicode (boolean) True when the documetn is in Unicode mode, false otherwise.
	 * @param $currentfont (array) Reference to current font array.
	 * @return array containing codepoints (UTF-8 characters values)
	 * @author Nicola Asuni
	 * @public static
	 */
	public static function UTF8StringToArray($str, $isunicode=true, &$currentfont) {
		if ($isunicode) {
			// requires PCRE unicode support turned on
			$chars = TCPDF_STATIC::pregSplit('//','u', $str, -1, PREG_SPLIT_NO_EMPTY);
			$carr = array_map(array('TCPDF_FONTS', 'uniord'), $chars);
		} else {
			$chars = str_split($str);
			$carr = array_map('ord', $chars);
		}
		if (is_array($currentfont['subsetchars']) && is_array($carr)) {

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webteam-mh · November 6, 2019, 8:20am

If you mean the locale, php is configured as follows:

$ php -r ‘echo setlocale(LC_ALL, 0);’
LC_CTYPE=en_GB.UTF-8;LC_NUMERIC=C;LC_TIME=C;LC_COLLATE=C;LC_MONETARY=C;LC_MESSAGES=C;LC_PAPER=C;LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=C;LC_IDENTIFICATION=C