The solution is a small recursive function. But what if you need to use the data in an array? Before concrete5.6.2 the JSON helper could only convert a JSON string into an object. The json_last_error_msg() function can help you figure out what kind of error you are getting so that you can take appropriate steps.In current versions of concrete5, the JSON helper can be used to convert JSON to an object or to an array. For example, names and values should be enclosed in double quotes, and there should be no trailing comma after name-value pairs. The JSON format requires us to follow a specific set of rules for proper encoding and decoding of the strings. It will be done using obj jsondecode (jsonencode (arr)) When the object is vardump, all items will be displayed after converting into an array. The first function is capable of accepting JSON-encoded string and converting it into a PHP variable. For decoding into an object, a json string which is available will be used to convert and string formatting is done to an object. The first method is applying jsondecode and jsonencode functions. Below, you can find efficient ways to meet that goal. ,Įcho json_encode ( $people_info, JSON_PRETTY_PRINT | JSON_PRESERVE_ZERO_FRACTION ) ĭealing With Errors During Encoding and Decoding This snippet will explain the ways of converting a PHP object to an associative array. The following example should clear things up. Luckily, we can still extract useful information from the file once we have stored it as an associative array. a string signalling a JSON decode error Example 1: Use. The fields of the generated table are of type TEXT or NUMERIC based on the format of the first JSON object that in PHP is stated by. So far we have read JSON data where we already knew all the keys. The scope of the first one is to create a temporary table using an array of Jason Objects or an SQL statement, the second is also used internally. Reading JSON Data Without Knowing the Keys Beforehand You should now have a rough idea of the approach you should take to read JSON data from a file depending on how it has been created. So we will be using two nested loops to get the countries visited by different customers. We have two nested arrays in the JSON data this time. The scope of the first one is to create a temporary table using an array of Jason Objects or an SQL statement, the second is also used internally. We have a file called people.json with the following contents: Setting it to true will return an associative array, and false will return objects. The second parameter determines how the decoded data is returned. The first parameter specifies the string that you want to decode. The json_decode() function accepts four parameters, but you will only need the first two in most situations. It is our job to decode the strings properly and get the information we want. Keep in mind that JSON simply provides a way to store information as a string using a set of predefined rules. Once the data is in a string, you can call the json_decode() function to extract information from the string. How do you access and store it in PHP?įirst, you need to get the data from the file into a variable by using file_get_contents(). Let's say you have a file which contains information in JSON format. Reading JSON From a File or String in PHP This characteristic makes JSON very compatible with PHP. Learn how to parse JSON using the json_decode() and json_encode() functions. PHP OOP JSON (JavaScript Object Notation) is an open standard file format and data interchange format that uses human-readable text to store and transmit data objects consisting of attributevalue pairs and arrays (or other serializable values). This tutorial will teach you how to read a JSON file and convert it to an array in PHP. A lot of languages like PHP now implement functions to read and create JSON data. As the name suggests, it was initially derived from JavaScript, but it is a language-independent format for storing information. JSON, short for JavaScript Object Notation, is a common lightweight format for storing and exchanging information.
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