How to use PHP print_r() Function
What is difference between echo, print, and print_r in PHP with example? - DevOpsSchool.com
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print_r silently casts booleans to integers. Took me two hours to find out why my code was failing. : r/lolphp
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PHP Tutorial - Output Arrays with print_r() in PHP
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All You Need to Know to about print_r in PHP | Edureka
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All You Need to Know to about print_r in PHP | Edureka
Pretty print array php (Example)
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Developing a Dynamic Website 2014 - Part 16 - Use print_r() to View Contents of a PHP Array - YouTube
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How to Print Array in PHP
PHP Array Exercise: Delete a specific value from an array using array_filter function - w3resource
PHP Print_r()
