How to send a GET request from PHP?

To send a GET request from PHP, you can use the file_get_contents function or the cURL extension. Here's an example using file_get_contents:

Example of using file_get_contents() function to send a GET request in PHP

<?php

$url = 'https://jsonplaceholder.typicode.com/posts';
$data = file_get_contents($url);

if ($data === false) {
    echo "Request failed.";
} else {
    echo $data;
}

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Note: file_get_contents() requires the allow_url_fopen directive to be enabled in php.ini. It is disabled by default on many servers.

Here's an example using cURL:

How to send a GET request from PHP using cURL?

<?php

$url = 'https://jsonplaceholder.typicode.com/posts';
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_TIMEOUT, 10);
curl_setopt($ch, CURLOPT_HTTPHEADER, ['Accept: application/json']);
$data = curl_exec($ch);

if (curl_errno($ch)) {
    echo 'cURL Error: ' . curl_error($ch);
} else {
    echo $data;
}
curl_close($ch);

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You can also use PHP stream contexts, which provide a built-in way to configure HTTP requests. Here's an example using stream contexts:

Example of using PHP stream contexts to send a GET request

<?php

$url = 'https://jsonplaceholder.typicode.com/posts';
$options = [
    'http' => [
        'method' => 'GET',
        'header' => 'Content-type: application/x-www-form-urlencoded',
    ],
];
$context = stream_context_create($options);
$data = file_get_contents($url, false, $context);

if ($data === false) {
    echo "Request failed.";
} else {
    echo $data;
}

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If you want to send a GET request with a query string (e.g., http://example.com?key=value), you can use the http_build_query function to build the query string, and then append it to the URL using the ? character. Here's an example:

How to send a GET request with a query string in PHP?

<?php

$url = 'http://example.com';
$query = http_build_query(array('key' => 'value'));
$data = file_get_contents($url . '?' . $query);

if ($data === false) {
    echo "Request failed.";
} else {
    echo $data;
}