3v4l.org

run code in 300+ PHP versions simultaneously
<?php $myArray = array( array( 1, 2, 3, 4, "a" ), array( 'a', "b", 'c', "d", 3 ), array( 'this is a quote " blah blah blah', "b", 'c', "d", 3 ) ); $csvOutput = ''; foreach($myArray as $key => $row) { $rowString = ''; foreach($row as $key => $col) { $rowString .= '"' . sanitize($col) . '", '; } $csvOutput .= rtrim($rowString, ', ') . "\n"; } echo $csvOutput; function sanitize($input) { return str_replace('"', '""', $input); }
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.21, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
"1", "2", "3", "4", "a" "a", "b", "c", "d", "3" "this is a quote "" blah blah blah", "b", "c", "d", "3"

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279.28 ms | 406 KiB | 357 Q