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Example code of leeoniya/dump-r

Informations about the package dump-r

dump_r()

a cleaner, leaner mix of print_r() and var_dump() (MIT Licensed)

screenshot

Demo: http://o-0.me/dump_r/

Installing

Composer

https://packagist.org/packages/leeoniya/dump-r

Require

Using & Config

Use dump_r() as a drop-in replacement for print_r() and var_dump(). It has some additional arguments that control output. The full signature of the function is:

There are also two modifier keys that can be used to control how the node expanding/collapsing works:

  1. Holding Shift while toggling will expand/collapse the full depth of the node.
  2. Hold Ctrl while toggling will expand/collapse all siblings after that node also. This is useful if you have an array of objects/arrays and want to expand all of them to one level simultaneously by clicking just the first one in the group. It works well for deep, complex objects.
  3. Shift and Ctrl can be used together.

Double-clicking binary strings will toggle them between mixed hex/ascii and hex-only representations:

binary_toggle

Some types of strings can be pretty-printed and additonal rendering options can be tweaked (shown with defaults):

Circular reference (recursion) detection and duplicate output is indicated like this for arrays, objects, closures and resources respectively: [*],{*},(*),<*>.

You can re-style all aspects of the html output using CSS, everything is class-tagged.

Extending

Adding your own classifiers & parsers is extremely easy. Here are instructions and two concrete examples of how the String base type can be subtyped. First for displaying EXIF data of jpeg and tiff image paths and then showing row data from CSV file paths.

This array

Which would normally dump like this:

coretyped

Can be dumped like this with subtyping:

usertyped

To do this, hook the correct core type and provide a function that classifies and processes the raw value, then modifies and returns an instance of Type. Here are the properties that can be modified/augmented:

  1. $type->types - Array of subtype string(s) of your choice. These get appended as CSS classes and are also displayed inline.
  2. $type->nodes - Array of expandable subnodes to display. Provide null if no subnodes are needed or to retain any subnodes extracted by the core type.
  3. $type->length - A string to be displayed at the end of the line, indicating length of subnodes. You can also abuse this param to display other length-esque information (the EXIF example below uses it to display image dimensions inline). Provide null to retain the default length display for the hooked core type.

All core types (see src/dump_r/Node dir) can be hooked by their fully namespaced names. For example, if you wanted to further subtype a JSON object string, you would use

Filtering, Marking & Recursion Control

Using the same Type hooks (introduced above) allows you to modify additional aspects of the renderer and iterator.

Skip specific nodes based on their properties or path in the hierarchy

Stop recursion of specific nodes

CSS-tag nodes via classes

All versions of dump-r with dependencies

PHP Build Version
Package Version
Requires php Version >=5.4.0
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