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Strings | Variables and Data Types
Introduction to PHP
course content

Conteúdo do Curso

Introduction to PHP

Introduction to PHP

1. First Acquaintance
2. Variables and Data Types
3. Conditional Statements
4. Arrays
5. Loops

bookStrings

Strings are used to represent textual information and can be defined within single ' ' or double " " quotes.

php

main

copy
1234
<?php $name = "John"; $message = 'Hello, World!'; ?>

Strings can contain any characters, including letters, digits, and special symbols.

String Concatenation


Concatenation in PHP is used to join strings together into one string. The concatenation operator . (dot) is used for this purpose:

php

main

copy
1234567
<?php $firstName = "John"; $lastName = "Doe"; $fullName = $firstName . " " . $lastName; // `$fullName` will be `"John Doe"` echo $fullName; ?>

The code above defines two variables, $firstName and $lastName, with values "John" and "Doe" respectively. It concatenates them into $fullName using the dot operator and then outputs the full name "John Doe" using echo.

Using Single and Double Quotes


You can use both '(single) and "(double quotes) to define strings. They have some differences in how they handle variables and special characters.

Double quotes allow variables to be directly used within the string and support escaping special characters:

php

main

copy
123456
<?php $name = "John"; $message = "Hello, $name!"; echo $message; ?>

Single quotes treat everything inside them as literal text, ignoring variables and special characters:

php

main

copy
123456
<?php $name = "John"; $message = 'Hello, $name!'; echo $message; ?>

Tarefa

  1. Assign any name to the variable $name.
  2. Concatenate the strings using the . operator so that running the code outputs the greeting "Hello, SomeName!".

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Seção 2. Capítulo 3
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bookStrings

Strings are used to represent textual information and can be defined within single ' ' or double " " quotes.

php

main

copy
1234
<?php $name = "John"; $message = 'Hello, World!'; ?>

Strings can contain any characters, including letters, digits, and special symbols.

String Concatenation


Concatenation in PHP is used to join strings together into one string. The concatenation operator . (dot) is used for this purpose:

php

main

copy
1234567
<?php $firstName = "John"; $lastName = "Doe"; $fullName = $firstName . " " . $lastName; // `$fullName` will be `"John Doe"` echo $fullName; ?>

The code above defines two variables, $firstName and $lastName, with values "John" and "Doe" respectively. It concatenates them into $fullName using the dot operator and then outputs the full name "John Doe" using echo.

Using Single and Double Quotes


You can use both '(single) and "(double quotes) to define strings. They have some differences in how they handle variables and special characters.

Double quotes allow variables to be directly used within the string and support escaping special characters:

php

main

copy
123456
<?php $name = "John"; $message = "Hello, $name!"; echo $message; ?>

Single quotes treat everything inside them as literal text, ignoring variables and special characters:

php

main

copy
123456
<?php $name = "John"; $message = 'Hello, $name!'; echo $message; ?>

Tarefa

  1. Assign any name to the variable $name.
  2. Concatenate the strings using the . operator so that running the code outputs the greeting "Hello, SomeName!".

Switch to desktopMude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo
Tudo estava claro?

Como podemos melhorá-lo?

Obrigado pelo seu feedback!

Seção 2. Capítulo 3
toggle bottom row

bookStrings

Strings are used to represent textual information and can be defined within single ' ' or double " " quotes.

php

main

copy
1234
<?php $name = "John"; $message = 'Hello, World!'; ?>

Strings can contain any characters, including letters, digits, and special symbols.

String Concatenation


Concatenation in PHP is used to join strings together into one string. The concatenation operator . (dot) is used for this purpose:

php

main

copy
1234567
<?php $firstName = "John"; $lastName = "Doe"; $fullName = $firstName . " " . $lastName; // `$fullName` will be `"John Doe"` echo $fullName; ?>

The code above defines two variables, $firstName and $lastName, with values "John" and "Doe" respectively. It concatenates them into $fullName using the dot operator and then outputs the full name "John Doe" using echo.

Using Single and Double Quotes


You can use both '(single) and "(double quotes) to define strings. They have some differences in how they handle variables and special characters.

Double quotes allow variables to be directly used within the string and support escaping special characters:

php

main

copy
123456
<?php $name = "John"; $message = "Hello, $name!"; echo $message; ?>

Single quotes treat everything inside them as literal text, ignoring variables and special characters:

php

main

copy
123456
<?php $name = "John"; $message = 'Hello, $name!'; echo $message; ?>

Tarefa

  1. Assign any name to the variable $name.
  2. Concatenate the strings using the . operator so that running the code outputs the greeting "Hello, SomeName!".

Switch to desktopMude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo
Tudo estava claro?

Como podemos melhorá-lo?

Obrigado pelo seu feedback!

Strings are used to represent textual information and can be defined within single ' ' or double " " quotes.

php

main

copy
1234
<?php $name = "John"; $message = 'Hello, World!'; ?>

Strings can contain any characters, including letters, digits, and special symbols.

String Concatenation


Concatenation in PHP is used to join strings together into one string. The concatenation operator . (dot) is used for this purpose:

php

main

copy
1234567
<?php $firstName = "John"; $lastName = "Doe"; $fullName = $firstName . " " . $lastName; // `$fullName` will be `"John Doe"` echo $fullName; ?>

The code above defines two variables, $firstName and $lastName, with values "John" and "Doe" respectively. It concatenates them into $fullName using the dot operator and then outputs the full name "John Doe" using echo.

Using Single and Double Quotes


You can use both '(single) and "(double quotes) to define strings. They have some differences in how they handle variables and special characters.

Double quotes allow variables to be directly used within the string and support escaping special characters:

php

main

copy
123456
<?php $name = "John"; $message = "Hello, $name!"; echo $message; ?>

Single quotes treat everything inside them as literal text, ignoring variables and special characters:

php

main

copy
123456
<?php $name = "John"; $message = 'Hello, $name!'; echo $message; ?>

Tarefa

  1. Assign any name to the variable $name.
  2. Concatenate the strings using the . operator so that running the code outputs the greeting "Hello, SomeName!".

Switch to desktopMude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo
Seção 2. Capítulo 3
Switch to desktopMude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo
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