From cab99aaee5b2a220e0f2aff0cce4ae57ca321383 Mon Sep 17 00:00:00 2001
From: Zach Borboa <zachborboa@gmail.com>
Date: Wed, 28 Sep 2022 14:22:30 -0700
Subject: [PATCH] Add MultiCurl example for retrying with a new unique proxy
 (#729)

---
 .../multi_curl_get_with_new_random_proxy.php  |  2 +-
 ..._curl_get_with_new_random_unique_proxy.php | 49 +++++++++++++++++++
 2 files changed, 50 insertions(+), 1 deletion(-)
 create mode 100644 examples/multi_curl_get_with_new_random_unique_proxy.php

diff --git a/examples/multi_curl_get_with_new_random_proxy.php b/examples/multi_curl_get_with_new_random_proxy.php
index 58bca60..1e02463 100644
--- a/examples/multi_curl_get_with_new_random_proxy.php
+++ b/examples/multi_curl_get_with_new_random_proxy.php
@@ -31,7 +31,7 @@ $multi_curl->addGet('https://httpbin.org/ip');
 
 $multi_curl->complete(function ($instance) {
     echo
-        'curl id ' . $instance->id . ':' . "\n" .
+        'curl id ' . $instance->id . ' completed:' . "\n" .
         '- ip: ' . $instance->response->origin . "\n" .
         '- proxy: ' . $instance->getOpt(CURLOPT_PROXY) . "\n" .
         '- url: ' . $instance->effectiveUrl . '' . "\n" .
diff --git a/examples/multi_curl_get_with_new_random_unique_proxy.php b/examples/multi_curl_get_with_new_random_unique_proxy.php
new file mode 100644
index 0000000..9d30a54
--- /dev/null
+++ b/examples/multi_curl_get_with_new_random_unique_proxy.php
@@ -0,0 +1,49 @@
+<?php
+require __DIR__ . '/../vendor/autoload.php';
+
+use Curl\ArrayUtil;
+use Curl\MultiCurl;
+
+$proxies = [
+    'someproxy.com:9999',
+    'someproxy.com:80',
+    'someproxy.com:443',
+];
+$current_proxies = $proxies;
+
+$multi_curl = new MultiCurl();
+$multi_curl->setProxyType(CURLPROXY_SOCKS5);
+$multi_curl->beforeSend(function ($instance) use ($proxies, &$current_proxies) {
+    if (!count($current_proxies)) {
+        $current_proxies = $proxies;
+    }
+
+    // Use random proxy that hasn't been used yet.
+    $rand_key = ArrayUtil::arrayRandomIndex($current_proxies);
+    $new_random_proxy = $current_proxies[$rand_key];
+    $instance->setProxy($new_random_proxy);
+
+    // Remove proxy from list of current proxies.
+    unset($current_proxies[$rand_key]);
+
+    // Re-index list of current proxies.
+    $current_proxies = array_values($current_proxies);
+
+    echo 'about to make request ' . $instance->id . ' using proxy "' . $new_random_proxy . '".' . "\n";
+});
+
+$multi_curl->addGet('https://httpbin.org/ip');
+$multi_curl->addGet('https://httpbin.org/ip');
+$multi_curl->addGet('https://httpbin.org/ip');
+$multi_curl->addGet('https://httpbin.org/ip');
+
+$multi_curl->complete(function ($instance) {
+    echo
+        'curl id ' . $instance->id . ' completed:' . "\n" .
+        '- ip: ' . $instance->response->origin . "\n" .
+        '- proxy: ' . $instance->getOpt(CURLOPT_PROXY) . "\n" .
+        '- url: ' . $instance->effectiveUrl . '' . "\n" .
+        '';
+});
+
+$multi_curl->start();