#curl

curl-multi.php

<?php

/**
 * curl 并发请求示例
 */
$startTime = microtime(true);
$curls = [];
for ($i = 1; $i <= 10; $i++) {
    // 创建 curl 句柄
    $curls[$i] = $curl = curl_init();
    curl_setopt_array($curl, [
        CURLOPT_URL            => "https://strangecat-api.test/api/v1/ping",
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_CUSTOMREQUEST  => "GET",
        CURLOPT_TIMEOUT        => 30,
        CURLOPT_SSL_VERIFYPEER => false,
    ]);
}

$mcurl = curl_multi_init(); // 1.创建 curl 批处理句柄
foreach ($curls as $ch) {
    curl_multi_add_handle($mcurl, $ch); // 2.添加 curl 句柄
}

$active = null;
do {
    // echo "running", $active, PHP_EOL;
    curl_multi_exec($mcurl, $active); // 3.执行 curl 批处理句柄
} while ($active > 0); // 4.

foreach ($curls as $k => $ch) {
    $rets[$k] = curl_multi_getcontent($ch);    // 5.获取 curl 批处理句柄的返回值
    curl_multi_remove_handle($mcurl, $ch);     // 6.移除 curl 句柄
}
curl_multi_close($mcurl); // 7 关闭 curl 批处理句 

$endTime = microtime(true);
var_export($rets);
printf(
    PHP_EOL . "Time: %.3f s | Memory Peak Usage: %s bytes | Memory Usage: %s bytes" . PHP_EOL,
    $endTime - $startTime,
    memory_get_peak_usage(),
    memory_get_usage()
);

curl-normal.php

<?php

/**
 * curl 普通请求示例
 */
$startTime = microtime(true);
$rets = [];
for ($i = 1; $i <= 10; $i++) {
    // 创建 curl 句柄
    $curl = curl_init();
    curl_setopt_array($curl, [
        CURLOPT_URL            => "https://strangecat-api.test/api/v1/ping",
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_CUSTOMREQUEST  => "GET",
        CURLOPT_TIMEOUT        => 30,
        CURLOPT_SSL_VERIFYPEER => false,
    ]);

    $response = curl_exec($curl);
    $err = curl_error($curl);
    // 关闭 curl 句柄
    curl_close($curl);
    $rets[$i] = $err ? : $response;
    echo "running", $i, PHP_EOL;
}

$endTime = microtime(true);
var_export($rets);
printf(
    PHP_EOL . "Time: %.3f s | Memory Peak Usage: %s bytes | Memory Usage: %s bytes" . PHP_EOL,
    $endTime - $startTime,
    memory_get_peak_usage(),
    memory_get_usage()
);