<?php const COMMA = ','; const EMPTY_STR = ''; $d = '\n'; $data = "1,2,3,$d,4,5,6,$d,7,8,9"; echo "data: $data\n"; $str = str_replace( array(COMMA,$d), array(EMPTY_STR,"\x0a"), $data); echo $str,PHP_EOL; // unlike echo in bash, echo does not emit newline automatically
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