console.log inside php

PHP
<script>
    console.log(<?= json_encode($foo); ?>);
</script>$a = array(
 null => 'a',
 true => 'b',
 false => 'c',
 0 => 'd',
 1 => 'e',
 '' => 'f'
);

echo count($a), "\n";
Source

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