How to Pretty Print JSON in PHP

This php tutorial discusses about pretty printing json in php.

I admit json format is self-descriptive and easy on human eyes. But have you ever created json data and tried printing or storing it in a file? Well! I'm sure you wouldn't say it human-friendly anymore if you take a look on it. All those cluttered characters and braces without proper indentation is a nightmare to read - to say the least.

A while back I tried for a php script to export mysql to json to backup data and use it for later. When I had a look on the file, what I see is this one...

{"a":"ABC","p":"PQR","X":"XYZ"}

instead of something like this with proper indentation and white-space and all...

{
    "a": "ABC",
    "p": "PQR",
    "X": "XYZ"
}

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