PHPのお勉強！

PHP TOP
PHP 8.4.2 Released!

    cURL 関数

    目次

    • curl_close — cURL セッションを閉じる
    • curl_copy_handle — cURL ハンドルを、その設定も含めてコピーする
    • curl_errno — 直近のエラー番号を返す
    • curl_error — 現在のセッションに関する直近のエラー文字列を返す
    • curl_escape — 指定した文字列を URL エンコードする
    • curl_exec — cURL セッションを実行する
    • curl_getinfo — 指定した伝送に関する情報を得る
    • curl_init — cURL セッションを初期化する
    • curl_multi_add_handle — cURL マルチハンドルに、通常の cURL ハンドルを追加する
    • curl_multi_close — マルチハンドルから全てのcURL ハンドルのを削除する
    • curl_multi_errno — 直近のマルチハンドルに対するエラー番号を返す
    • curl_multi_exec — 現在の cURL ハンドルから、サブ接続を実行する
    • curl_multi_getcontent — CURLOPT_RETURNTRANSFER が設定されている場合に、cURL ハンドルの内容を返す
    • curl_multi_info_read — 現在の転送についての情報を表示する
    • curl_multi_init — 新規 cURL マルチハンドルを返す
    • curl_multi_remove_handle — cURL ハンドルのセットからハンドルを削除する
    • curl_multi_select — 任意の cURL マルチハンドル接続で読み取りまたは書き込みが可能になるまで待機する
    • curl_multi_setopt — cURL マルチハンドル用のオプションを設定する
    • curl_multi_strerror — エラーの内容を表す文字列を返す
    • curl_pause — 接続の中断と再開をする
    • curl_reset — libcurl セッションハンドルのすべてのオプションをリセットする
    • curl_setopt — cURL 転送用オプションを設定する
    • curl_setopt_array — CURL 転送用の複数のオプションを設定する
    • curl_share_close — cURL 共有ハンドルを閉じる
    • curl_share_errno — 直近の共有ハンドルに対するエラー番号を返す
    • curl_share_init — curl 共有ハンドルを初期化する
    • curl_share_setopt — cURL 共有ハンドルのオプションを設定する
    • curl_share_strerror — 与えられたエラーコードを説明する文字列を返す
    • curl_strerror — エラーコードの説明を返す
    • curl_unescape — URL エンコードされた文字列をデコードする
    • curl_upkeep — 接続を維持するためのチェックを行う
    • curl_version — cURL のバージョンを返す

    Found A Problem?

    Learn How To Improve This Page • Submit a Pull Request • Report a Bug
    ＋add a note

    User Contributed Notes 10 notes

    up
    27
    Mr.KTO
    17 years ago
    Don't foget to curl_close($ch); Even if curl_errno($ch) != 0

    Because if you don't - on Windows this will produce windows-error-report (Program terminated unexpectedly)
    up
    6
    helmizz at yahoo dot com
    10 years ago
    This is sample script to use curl, Just input curl_setopt,
    exp :
    curlsetop[0] ==> name : CURLOPT_URL ; value : http://amazon.com
    curlsetop[1] ==> name : CURLOPT_RETURNTRANSFER ; value : true
    curlsetop[2] ==> name : CURLOPT_FOLLOWLOCATION ; value : true

    You can add form input.

    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
    <html>
    <head>
    <title> New Document </title>
    <meta name="Generator" content="">
    <meta name="Author" content="Helmi Anwar">
    <meta name="Keywords" content="">
    <meta name="Description" content="">
    </head>

    <body>

    <form method="post" action="">
    <table>
    <tr class="rowid_add">
    <td>curl_setopt [0]</td>
    <td>Name : <input type="text" size="50" name="setopt_name[]"></td>
    <td>Value :<input type="text" size="50" name="setopt_value[]"></td>
    </tr>
    <tr class="rowid_add">
    <td>curl_setopt [0]</td>
    <td>Name : <input type="text" size="50" name="setopt_name[]"></td>
    <td>Value :<input type="text" size="50" name="setopt_value[]"></td>
    </tr>
    <tr class="rowid_add">
    <td>curl_setopt [0]</td>
    <td>Name : <input type="text" size="50" name="setopt_name[]"></td>
    <td>Value :<input type="text" size="50" name="setopt_value[]"></td>
    </tr>
    <tr>
    <td><input type="submit" name="submit_yes" value="EXECUTE"></td>
    </tr>
    </table>
    </form>


    <?php

    function curl_test($setopt_content)
    {
    $ch = curl_init();
    curl_setopt_array($ch, $setopt_content);
    $result_data = curl_exec($ch);
    curl_close($ch);
    return     $result_data;
    }

    if(    $_REQUEST['submit_yes']=="EXECUTE")
    {

    foreach (    $_REQUEST['setopt_name'] as $k => $index_content)
    {
    $value_content=$_REQUEST['setopt_value'][$k];
    $index_content =strtoupper($index_content);
    eval(    '$index_content = '.$index_content.';');
    //echo ($index_content);
    if($index_content!='')
    {
    if(    strtoupper($value_content)=='TRUE')
    {    $setopt_content[$index_content]=TRUE;}
    elseif(    strtoupper($value_content)=='FALSE')
    {    $setopt_content[$index_content]=FALSE;}
    else
    {    $setopt_content[$index_content]=$value_content;}
    }
    }

    $info=curl_test($setopt_content);

    }

    ?>
     <textarea name="result" rows="25" cols="100"><?php echo htmlspecialchars($info);?></textarea>
    </body>
    </html>
    up
    2
    Anonymous
    3 years ago
    Note, if you will ever need to get/set unique handle for Curl-object, you might need to use CURL_PRIVATE property for each instace
    https://www.php.net/manual/en/function.curl-setopt.php
    up
    3
    simon [at] vhostdirect [dot] co [dot] uk
    20 years ago
    It took me quite some to to figure out how to get Curl (with SSL), OpenSSL and PHP to play nicely together.

    After reinstalling MS-VC7 and compiling OpenSSL to finally realise this was'nt nesscary.

    If your like me and like *Nix systems more than Windows then you'll most probly have similar problems.

    I came across this, on a simple google with the right keywords.

    http://www.tonyspencer.com/journal/00000037.htm

    I read thru that and found my mistake.

    Its just a small list of notes, I found them to be the best I've found on the subject and the most simplist.

    Dont forget to add a simple line like this into your scripts to get them working on Win32.

    <?php
    if($WINDIR) curl_setopt($curl, CURLOPT_CAINFO, "c:\\windows\\ca-bundle.crt");
    ?>

    Last note: ca-bundle.crt file is located in the Curl download. I stored mine in the windows directory and apache/php can access it fine.

    All the best and I hope this helps.

    Simon Lightfoot
    vHost Direct Limited
    up
    3
    mikeb[at]xamo[dot]com
    20 years ago
    A note of warning for PHP 5 users: if you try to fetch the CURLINFO_CONTENT_TYPE using curl_getinfo when there is a connect error, you will core dump PHP. I have informed the Curl team about this, so it will hopefully be fixed soon. Just make sure you check for an error before you look for this data.
    up
    1
    killermonk at REMOVE dot killermonk dot com
    17 years ago
    For anyone trying to use cURL to submit to an ASP/ASPX page that uses an image as the submit button.

    Make sure that you have 'button_name.x' and 'button_name.y' in the post fields. PHP names these fields 'button_name_x' and 'button_name_y', while ASP uses a dot.

    Also, as noted above, be sure to include the '__VIEWSTATE' input field in your post request.
    up
    0
    Peter X.
    16 years ago
    Although it has been noted that cURL outperforms both file_get_contents and fopen when it comes to getting a file over a HTTP link, the disadvantage of cURL is that it has no way of only reading a part of a page at a time.

    For example, the following code is likely to generate a memory limit error:

    <?php
    $ch     = curl_init("http://www.example.com/reallybigfile.tar.gz");
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
    $output = curl_exec($ch);

    $fh = fopen("out.tar.gz", 'w');
    fwrite($fh, $output);
    fclose($fh);
    ?>

    While this, on the other hand, wouldn't

    <?php
    $hostfile     = fopen("http://www.example.com/reallybigfile.tar.gz", 'r');
    $fh = fopen("out.tar.gz", 'w');

    while (!    feof($hostfile)) {
    $output = fread($hostfile, 8192);
    fwrite($fh, $output);
    }

    fclose($hostfile);
    fclose($fh);
    ?>
    up
    -3
    alidrus at langkah dot com
    20 years ago
    In recent versions of php, CURLOPT_MUTE has (probably) been deprecated. Any attempt of using curl_setopt() to set CURLOPT_MUTE will give you a warning like this:

    PHP Notice: Use of undefined constant CURLOPT_MUTE - assumed 'CURLOPT_MUTE' in ....

    If you wish tu silence the curl output, use the following instead:

    <?php
    curl_setopt    ($ch, CURLOPT_RETURNTRANSFER, true);
    ?>

    And then,

    <?php
    $curl_output    =curl_exec($ch);
    ?>

    The output of the curl operation will be stored as a string in $curl_output while the operation remains totally silent.
    up
    -4
    richardkmiller AT gmail
    18 years ago
    Beware of any extra spaces in the URL. A trailing space in the URL caused my script to fail with the message "empty reply from server".
    up
    -3
    ciaoandriana8 at gmail dot com
    3 years ago
    This is sample script to use curl, Just input curl_setopt,
    exp :
    curlsetop[0] ==> name : CURLOPT_URL ; value : https://amzn.to/3njlWW6
    curlsetop[1] ==> name : CURLOPT_RETURNTRANSFER ; value : true
    curlsetop[2] ==> name : CURLOPT_FOLLOWLOCATION ; value : true

    You can add form input.

    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
    <html>
    <head>
    <title> New Document </title>
    <meta name="Generator" content="">
    <meta name="Author" content="Helmi Anwar">
    <meta name="Keywords" content="">
    <meta name="Description" content="">
    </head>

    <body>

    <form method="post" action="">
    <table>
    <tr class="rowid_add">
    <td>curl_setopt [0]</td>
    <td>Name : <input type="text" size="50" name="setopt_name[]"></td>
    <td>Value :<input type="text" size="50" name="setopt_value[]"></td>
    </tr>
    <tr class="rowid_add">
    <td>curl_setopt [0]</td>
    <td>Name : <input type="text" size="50" name="setopt_name[]"></td>
    <td>Value :<input type="text" size="50" name="setopt_value[]"></td>
    </tr>
    <tr class="rowid_add">
    <td>curl_setopt [0]</td>
    <td>Name : <input type="text" size="50" name="setopt_name[]"></td>
    <td>Value :<input type="text" size="50" name="setopt_value[]"></td>
    </tr>
    <tr>
    <td><input type="submit" name="submit_yes" value="EXECUTE"></td>
    </tr>
    </table>
    </form>

    <?php

    function curl_test($setopt_content)
    {
    $ch = curl_init();
    curl_setopt_array($ch, $setopt_content);
    $result_data = curl_exec($ch);
    curl_close($ch);
    return     $result_data;
    }

    if(    $_REQUEST['submit_yes']=="EXECUTE")
    {

    foreach (    $_REQUEST['setopt_name'] as $k => $index_content)
    {
    $value_content=$_REQUEST['setopt_value'][$k];
    $index_content =strtoupper($index_content);
    eval(    '$index_content = '.$index_content.';');
    //echo ($index_content);
    if($index_content!='')
    {
    if(    strtoupper($value_content)=='TRUE')
    {    $setopt_content[$index_content]=TRUE;}
    elseif(    strtoupper($value_content)=='FALSE')
    {    $setopt_content[$index_content]=FALSE;}
    else
    {    $setopt_content[$index_content]=$value_content;}
    }
    }

    $info=curl_test($setopt_content);

    }

    ?>
    <textarea name="result" rows="25" cols="100"><?php echo htmlspecialchars($info);?></textarea>
    </body>
    </html>
    ＋add a note