Skip to content
codingtube

codingtube

Coding and Programming tutorials

  • javascript
  • React
  • ES6
  • React js
  • coding
  • ffmpeg
  • java
  • programming
  • information
  • coding
  • Privacy Policy
  • Twitter trends
  • Age Calculatore
  • Codingtube Community
  • YouTube Tags Generator
  • About
  • Toggle search form

Casting Operators in php

Posted on November 26, 2021November 26, 2021 By christo No Comments on Casting Operators in php

Although PHP is a weakly typed language, there are occasions when it’s useful to consider a value as a specific type. The casting operators, (int), (float), (string), (bool), (array), (object), and (unset), allow you to force a value into a particular type

Table of PHP casting operators

OperatorSynonymous operatorsChanges type to
(int)(integer)Integer
(bool)(boolean)Boolean
(float)(double), (real)Floating point
(string)String
(array)Array
(object)Object
(unset)NULL
Table of PHP casting operators

Casting affects the way other operators interpret a value rather than changing the value in a variable. For example, the code:

$a = “5”;
$b = (int) $a;

assigns $b the integer value of $a; $a remains the string “5”. To cast the value of the variable itself, you must assign the result of a cast back to the variable:

$a = “5”
$a = (int) $a; // now $a holds an integer

Not every cast is useful. Casting an array to a numeric type gives 1, and casting an array to a string gives “Array” (seeing this in your output is a sure sign that you’ve printed a variable that contains an array)

Casting an object to an array builds an array of the properties, thus mapping property names to values:

class Person
{
var $name = “Fred”;
var $age = 35;
}
$o = new Person;
$a = (array) $o;
print_r($a);
Array (
[name] => Fred
[age] => 35
)

You can cast an array to an object to build an object whose properties correspond to the array’s keys and values. For example:

$a = array(‘name’ => “Fred”, ‘age’ => 35, ‘wife’ => “Wilma”);
$o = (object) $a;
echo $o->name;
Fred

Keys that are not valid identifiers are invalid property names and are inaccessible when an array is cast to an object, but are restored when the object is cast back to an array

php Tags:php, Table of PHP casting operators

Post navigation

Previous Post: Logical Operators in php
Next Post: php function

Related Posts

Stacks in php php
while loop in php php
Cookies in php php
date_default_timezone_set in PHP php
exit in php php
chunk_split in PHP php

Leave a Reply Cancel reply

You must be logged in to post a comment.

Recent Posts

  • Affiliate Marketing Principles
  • The Basics You Need to Know About Affiliate Marketing
  • Affiliate Marketing Options
  • All About Affiliate Marketing
  • Classification of Database Management Systems
  • Three-Tier and n-Tier Architectures
    for Web Applications
  • Two-Tier Client/Server Architectures for DBMSs
  • Basic Client/Server Architectures in DBMS
  • Centralized DBMSs Architecture in DBMS
  • Tools, Application Environments, and Communications Facilities in DBMS

Categories

  • Affiliate marketing (5)
  • Algorithm (43)
  • amp (3)
  • android (223)
  • Android App (8)
  • Android app review (4)
  • android tutorial (60)
  • Artificial intelligence (61)
  • AWS (3)
  • bitcoin (8)
  • blockchain (1)
  • c (5)
  • c language (105)
  • cloud computing (4)
  • coding (4)
  • coding app (4)
  • complex number (1)
  • Computer Graphics (66)
  • data compression (65)
  • data structure (188)
  • DBMS (44)
  • digital marketing (9)
  • distributed systems (11)
  • ffmpeg (26)
  • game (3)
  • html (6)
  • image processing (35)
  • Inequalities (1)
  • information (4)
  • java (212)
  • java network (1)
  • javascript (9)
  • kotlin (4)
  • leetcode (1)
  • math (21)
  • maven (1)
  • mysql (1)
  • Node.js (8)
  • operating system (109)
  • php (310)
  • Principle Of Mathematical Induction (1)
  • programming (6)
  • Python (4)
  • Python data structure (9)
  • React native (1)
  • React.js (22)
  • Redux (1)
  • seo (4)
  • set (12)
  • trigonometry (6)
  • vue.js (35)
  • XML (3)

sitemap

sitemap of videos

sitemap of webstories

sitemap of website

  • Affiliate marketing
  • Algorithm
  • amp
  • android
  • Android App
  • Android app review
  • android tutorial
  • Artificial intelligence
  • AWS
  • bitcoin
  • blockchain
  • c
  • c language
  • cloud computing
  • coding
  • coding app
  • complex number
  • Computer Graphics
  • data compression
  • data structure
  • DBMS
  • digital marketing
  • distributed systems
  • ffmpeg
  • game
  • html
  • image processing
  • Inequalities
  • information
  • java
  • java network
  • javascript
  • kotlin
  • leetcode
  • math
  • maven
  • mysql
  • Node.js
  • operating system
  • php
  • Principle Of Mathematical Induction
  • programming
  • Python
  • Python data structure
  • React native
  • React.js
  • Redux
  • seo
  • set
  • trigonometry
  • vue.js
  • XML
  • Blog
  • Data compression tutorial - codingpoint
  • How to change mbstring in php 5.6
  • How to diagnose out of memory killed PHP-FPM
  • Introduction to jQuery
  • Privacy
  • Affiliate marketing
  • Algorithm
  • amp
  • android
  • Android App
  • Android app review
  • android tutorial
  • Artificial intelligence
  • AWS
  • bitcoin
  • blockchain
  • c
  • c language
  • cloud computing
  • coding
  • coding app
  • complex number
  • Computer Graphics
  • data compression
  • data structure
  • DBMS
  • digital marketing
  • distributed systems
  • ffmpeg
  • game
  • html
  • image processing
  • Inequalities
  • information
  • java
  • java network
  • javascript
  • kotlin
  • leetcode
  • math
  • maven
  • mysql
  • Node.js
  • operating system
  • php
  • Principle Of Mathematical Induction
  • programming
  • Python
  • Python data structure
  • React native
  • React.js
  • Redux
  • seo
  • set
  • trigonometry
  • vue.js
  • XML
  • Blog
  • Data compression tutorial - codingpoint
  • How to change mbstring in php 5.6
  • How to diagnose out of memory killed PHP-FPM
  • Introduction to jQuery
  • Privacy

© codingtube.tech