find a typo.I don't know the php error.

I'd like to use the API to create something that finds typographical errors, but I'm stuck, so I'd like to ask you a question.
For the time being, I would like to make sure that there are no errors now.

Messages displayed:

Warning:Trying to access array offset on value of type null in C:\xampp\htdocs\graduation\sotoken.php on line 24

Current State Code:

<?php
$post_flag=false;
if($_SERVER["REQUEST_METHOD"] === "POST") {
  $post_flag=true;
  $url="https://api.a3rt.recruit-tech.co.jp/proofreading/v2/typo";
  $apikey="xxxxxxxxxx";
  $sentence=str_replace(array("\r\n", "\r", "\n", "", "", "", "", "@$_POST['text']); // Input Sentences
  $sensitivity=@$_POST ['sensitivity']; // Check sensitivity (low, medium, high)
  $postdata=array(
    "apikey" = > $apikey,
    "sentence" = > $sentence,
    "sensitivity" = > $sensitivity
  );
  $ch = curl_init($url);
  curl_setopt($ch,CURLOPT_POST,true);
  curl_setopt($ch,CURLOPT_RETURNTRANSFER, true);
  curl_setopt($ch,CURLOPT_POSTFIELDS,$postdata);  
  $curl=curl_exec($ch);
  curl_close($ch);
  $results=json_decode($curl, true);

  $alerts=@$results["alerts"]?:';
// Prevent Cross-Site Scripting (XSS) Vulnerability
  $checked_sentence=htmlspecialchars($results['checkedSentence',ENT_QUOTES);
  $checked_sentence=str_replace(array('&&'), '<span class="error">', $checked_sentence);
  $checked_sentence=str_replace(array('&gt;&'), '</span>', $checked_sentence);

  function get_alert_text($score){
    $text=';
    if($score>0.7){
      $text = "Possibility of typographical errors: large";
    }
    elseif($score>0.3){
      $text = "Possible typo: Medium";
    }
    else{
      $text = "Possibility of typo: small";
    }
    return$text;
  }

  $status_code=array(
    "0" = > "Normal response (not specified),
    "1" = > "Normal response (indicated),
    "1000" = > "API Key Unspecified",
    "1001" = > "API Key Not Found",
    "1002" = > "Departed",
    "1003" = > "Account Not Approved",
    "1010" = > "Server Not Found",
    "1011" = > "Server Configuration Error",
    "1030" = > "Access Denied",
    "1400" = > "Request parameter is invalid",
    "1400" = > "Request parameter is incorrect (sentence is not UTF-8)",
    "1404" = > "The specified object cannot be found",
    "1405" = > "Incorrect Method",
    "1413" = > "Request parameter value is too long",
    "1500" = > "An unexpected error occurs during server processing",
  );
}
?>

<!DOCTYPE HTML>
<html lang="ja">
<head>
<metacharset="utf-8">
<title> PHP Sample</title>
</head>
<body>
<form action="sotaken.php" method="post">
    <p>Input area: <br>
    <input type="text" name="text">/p>
    <p><input type="submit" value="send">/p>
</form>
</body>
</html>

php html

2022-12-09 13:11

1 Answers

Warning:Trying to access array offset on value of type null

displays a warning when accessing variables that are not arrays as arrays.(for example, variables of "null" or "numerical" type)
json_decode with $results array returns null if passed.
Therefore, I think curl's communication result is null.

P.S. I think it is better to investigate the cause one by one without suppressing the warning display by adding @.

2022-12-10 04:30

If you have any answers or tips

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