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Php 95
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Java 94
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Javascript 37
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Regex 18
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Git 17
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Security 16
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Docker 07
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Python 58
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Machine Learning 14
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Book Highlights
Php
/
Streams
- 1 Basics 5
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Quotes S
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Constants S
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Control structures S
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Reference S
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Number systems S
- 2 Variables 4
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Definition S
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Variable variable S
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Exists S
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Type casting S
- 3 Operators 5
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Aritmetic S
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Bitwise S
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String S
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Comparison S
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Logical S
- 4 Function 4
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Definition S
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Anonymous S
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Reference S
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Variable arguments S
- 5 Array 7
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Basics S
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Operations S
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Create S
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Search S
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Modify S
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Sort S
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Storage S
- 6 String 9
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Basics
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Compare
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Search
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Replace
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Format
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Regexp
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Parse
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Formating
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Json
- 7 Streams 6
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File open
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Read file
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Read csv
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File contents
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Context
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Ob_start
- 8 Oop 6
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Object instantiation S
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Class constructor
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Interfaces, abstract
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Resource visibility
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Class constants
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Namespaces
- 9 Features 9
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Autoload
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Class reflection
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Magic methods
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Exceptions S
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Late static binding
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Type hinting
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SPL
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PHPUNIT
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PHAR
- 10 Versions 2
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Php7.4 S
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Php8.0 S
- 11 Http 4
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Headers
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File Uploads
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Cookies
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Sessions
- 12 Design Patterns 4
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Singleton Pattern S
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Observer Pattern
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Strategy Pattern
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Registry
- 13 Modern Php 8
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Composer S
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Slim Framework
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Autoloader
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Package
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Releases
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Generators
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Dependency Injection
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Middleware
- 14 Create Framework 7
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App
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Http Foundation
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Front Controller
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Routing
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Render Controller
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Resolver
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SoC
- 15 Frameworks 4
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Symfony v5
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Laravel v8
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Laminas v3
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Codeigniter v4
- 16 Composer 5
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Guzzle
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Carbon
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Faker
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Math
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Requests
- 17 Symfony 6
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Routes S
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Annotations
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Flex
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Controllers
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Doctrine
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Templating
R
Q
Read file
Outputs a file (useful when you need to include static files).
header("Content-type: <span class='keyword_code'>application/pdf</span>");
readfile("zce-php.pdf");
Read a file into an array of lines.
/* --- example.txt --
aaa
bbb
ccc
*/
$arr = file("example.txt");
print_r($arr); // [0] => aaa [1] => bbb [2] => ccc
Get Contents
Load an entire file into memory (returns the file as string). Use urlencode() for URI with special characters like space (?a=Hello World)
$file = file_get_contents("example.txt");
$file = file_get_contents("http://studyon.minte9.com");
echo urlencode($file);
Read 3 characters starting from 2st character.
/* --- example.txt --
aaa
bbb
ccc
*/
$file = file_get_contents("example.txt", NULL, NULL, 2, 3);
echo $file; // a b (anb)
// Second param can be: NULL, TRUE or FILE_USE_INCLUDE_PATH (php > 5)
// Third param refers to Stream context
Put contents
Allows you to write the contents of a PHP string to a file in one pass.
touch("example.txt");
$data = "My Data";
file_put_contents("example.txt", $data);
// example.txt content is now: My Data
// using flags
$data = "My Data2";
file_put_contents("example.txt", $data, FILE_APPEND);
// content now: My DataMy Data2
// LOCK_EX flag to prevent anyone else writing to the file at the same time
file_put_contents("example.txt", "xxx", <span class='keyword_code'>FILE_APPEND | LOCK_EX</span>);
With an array, will automatically apply the equivalent of implode('', $array).
touch("example.txt");
$data = array("xxx", "yyy", "zzz");
file_put_contents("example.txt", $data); // content_file: xxxyyyzzz
➥ Questions
Last update: 466 days ago