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<?php $allowedAttachmentTypes = '.jpeg,.gif,.png,.jpg,.bmp'; print_r( $allowedAttachmentTypes ); $allowedAttachmentTypes = explode( ',', $allowedAttachmentTypes ); array_walk( $allowedAttachmentTypes, function( $var, $index ) use ( &$allowedAttachmentTypes ) { $allowedAttachmentTypes[ $index ] = preg_replace( '#[\s\.]+#', '', $var ); } ); print_r( $allowedAttachmentTypes );
Output for git.master, git.master_jit, rfc.property-hooks
.jpeg,.gif,.png,.jpg,.bmpArray ( [0] => jpeg [1] => gif [2] => png [3] => jpg [4] => bmp )

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