Solution
mailparse
must be loaded after mbstring
, and mbstring
is loaded by /etc/php-5.5.d/mbstring.ini
which is read after php.ini
.
Merely adding mailparse.ini
to php-5.5.d
will not work, because ini
files are loaded alphabetically; though you could just name it zz_mailparse.ini
instead.
Loading both extensions in only(sic) php.ini
results in:
PHP Warning: Module 'mbstring' already loaded in Unknown on line 0
PHP Warning: Module 'mailparse' already loaded in Unknown on line 0
That one's a mystery.
Proof
$ echo '<?php echo extension_loaded("mailparse") ? "mailparse loaded\n" : "mailparse not loaded\n";' > ~/is_mailparse_loaded.php
$ php ~/is_mailparse_loaded.php
mailparse loaded
$ pwd
/etc/php-5.5.d
$ sudo mv zz_mailparse.ini mailparse.ini
$ php ~/is_mailparse_loaded.php
PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib64/php/5.5/modules/mailparse.so' - /usr/lib64/php/5.5/modules/mailparse.so: undefined symbol: mbfl_convert_filter_flush in Unknown on line 0
mailparse not loaded
$ sudo mv mailparse.ini zz_mailparse.ini
$ php ~/is_mailparse_loaded.php
mailparse loaded
$