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Thus, an array of numbers with 5 rows and 4 columns, hence 20 elements, is said to have dimension 2 in computing contexts, but represents a matrix that is said to be 4×5-dimensional. Also, the computer science meaning of "rank" conflicts with the notion of tensor rank, which is a generalization of the linear algebra concept of rank of a matrix.)
For interoperability, applications should avoid assigning meaning to member ordering even if the parsing software makes that ordering visible. While the specifications place no limits on the magnitude or precisions of JSON number literals, the widely used JavaScript implementation stores them as IEEE754 "binary64" quantities.
PHP has hundreds of base functions and thousands more from extensions. Prior to PHP version 5.3.0, functions are not first-class functions and can only be referenced by their name, whereas PHP 5.3.0 introduces closures. [35] User-defined functions can be created at any time and without being prototyped. [35]
In a JSON user group thread, Douglas Crockford incorrectly used the term "JsonML" to describe two variants: the "array form" and "object form". [3] This was a misuse of the term JsonML which has always stood to mean what Crockford referred to as the "array form".
Since JSON text sequences cannot contain control characters, a record separator character can be used to delimit the sequences. In addition, it is suggested that each JSON text sequence be followed by a line feed character to allow proper handling of top-level JSON objects that are not self delimiting (numbers, true, false, and null).
Gössner also published initial implementations in JavaScript and PHP. Subsequently, over fifty implementations were created in various programming languages. The JSONPath Comparison Project lists many of these implementations and compares their behavior. [2] JSONPath is widely used in the Java ecosystem. [3]
The elePHPant, PHP mascot. The mascot of the PHP project is the elePHPant, a blue elephant with the PHP logo on its side, designed by Vincent Pontier [203] in 1998. [204] "The (PHP) letters were forming the shape of an elephant if viewed in a sideways angle." [205] The elePHPant is sometimes differently coloured when in plush toy form. [206]
The PHP Standard Recommendation (PSR) is a PHP specification published by the PHP Framework Interop Group. Similar to Java Specification Request for Java, it serves the standardization of programming concepts in PHP. The aim is to enable interoperability of components and to provide a common technical basis for implementation of proven concepts ...