Get json data in php
IntroFirst off you have a string. JSON is not an array, an object, or a data structure. JSON is a text-based serialization format - so a fancy string, but still just a string. Decode it in PHP by using Show
Therein you might find:
These are the things that can be encoded in JSON. Or more accurately, these are PHP's versions of the things that can be encoded in JSON. There's nothing special about them. They are not "JSON objects" or "JSON arrays." You've decoded the JSON - you now have basic everyday PHP types. Objects will be instances of stdClass, a built-in class which is just a generic thing that's not important here. Accessing object propertiesYou access the
properties of one of these objects the same way you would for the public non-static properties of any other object, e.g.
Accessing array elementsYou access the elements of one of these arrays the same way you would for any other array, e.g.
Iterate over it with
Or mess about with any of the bazillion built-in array functions. Accessing nested itemsThe properties of objects and the elements of arrays might be more objects and/or arrays - you can simply continue to access their properties and members as usual, e.g.
Passing true as the second argument to json_decode()When you do this, instead of objects you'll get associative arrays - arrays with strings for keys. Again you access the elements thereof as usual, e.g.
Accessing associative array itemsWhen decoding a JSON object to an associative PHP array, you can iterate both keys and values using the
Prints
Don't know how the data is structuredRead the documentation for whatever it is you're getting the JSON from. Look at the JSON - where you see curly brackets Hit the decoded data with a
and check the output:
It'll tell you where you have objects, where you have arrays, along with the names and values of their members. If you can only get so far into it before you get lost - go that far and hit that with
Take a look at it in this handy interactive JSON explorer. Break the problem down into pieces that are easier to wrap your head around. json_decode() returns nullThis happens because either:
If you need to change the max depth you're probably solving the wrong problem. Find out why you're getting such deeply nested data (e.g. the service you're querying that's generating the JSON has a bug) and get that to not happen. Object property name contains a special characterSometimes you'll have an object property name that contains something like a hyphen
If you have an integer as property see: How to access object properties with names like integers? as reference. Someone put JSON in your JSONIt's ridiculous but it happens - there's JSON encoded as a string within your JSON. Decode, access the string as usual, decode that, and eventually get to what you need.
Data doesn't fit in memoryIf your JSON is too large for
How to sort itSee: Reference: all basic ways to sort arrays and data in PHP. How can access data from JSON in PHP?Accessing JSON data as a PHP object
By default the json_decode() function returns an object. To access the PHP object data, you use the object operator (->) after the object name, followed by the key of the key-value pair. This is the same as the name in the name-value pair in JSON object eg $data->firstName .
How are JSON values accessed in PHP with example?PHP File explained:
Convert the request into an object, using the PHP function json_decode(). Access the database, and fill an array with the requested data. Add the array to an object, and return the object as JSON using the json_encode() function.
Can PHP return JSON?You can simply use the json_encode() function to return JSON response from a PHP script. Also, if you're passing JSON data to a JavaScript program, make sure set the Content-Type header.
How show JSON data from HTML table in PHP?To use PHP function file_get_contents () we can read a file and retrieve the data present in JSON file. After retrieving data need to convert the JSON format into an array format. Then with the use of looping statement will display as a table format.
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