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嵌套块验证失败：未知的代码块类型: procedures_ifreturn，已拒绝添加 - AI...
..., \"timestamp\": 1772424391 }, { \"name\": \"GQ-XHB-PL-GD-DU\", \"value\": 38, \"type\": 16, \"quality\": 1, \"timestamp\": 1772424301 }, { \"name\": \"YIWANG-CHU-WD\", \"value\": 75.85, \"type\": 16, \"quality\": 1, \...
Getting HTTP code in PHP using curl
...lso helps with following redirects):
How can I check if a URL exists via PHP?
As a whole:
$url = 'http://www.example.com';
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_HEADER, true); // we want headers
curl_setopt($ch, CURLOPT_NOBODY, true); // we don't need body
curl_setopt($ch, CUR...
How to compare two dates in php
How to compare two dates in php if dates are in format '03_01_12' and '31_12_11' .
15 Answers
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How can I check if a URL exists via PHP?
How do I check if a URL exists (not 404) in PHP?
22 Answers
22
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(HTML) Download a PDF file instead of opening them in browser when clicked
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you will need to use a PHP script (or an other server side language for this)
<?php
// We'll be outputting a PDF
header('Content-type: application/pdf');
// It will be called downloaded.pdf
header('Content-Disposition: attachment; filename="do...
Safely remove migration In Laravel
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I accidentally created a migration with a bad name (command: php artisan migrate:make). I did not run (php artisan migrate) the migration, so I decided to remove it.
My steps:
Manually delete the migration file under app/database/migrations/my_migration_file_name.php
Reset the compos...
What is the difference between public, private, and protected?
...e property / method will be public.
More: (For comprehensive information)
PHP Manual - Visibility
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What does it mean to start a PHP function with an ampersand?
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It's returning a reference, as mentioned already. In PHP 4, objects were assigned by value, just like any other value. This is highly unintuitive and contrary to how most other languages works.
To get around the problem, references were used for variables that pointed to obje...
How to get a variable name as a string in PHP?
Say i have this PHP code:
24 Answers
24
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Fastest way to convert string to integer in PHP
Using PHP, what's the fastest way to convert a string like this: "123" to an integer?
8 Answers
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