What are some potential reasons why query strings may not be functioning on an iPhone when using PHP?

One potential reason why query strings may not be functioning on an iPhone when using PHP is due to the use of special characters in the query string that are not properly encoded. To solve this issue, you can use the `urlencode()` function in PHP to encode the query string before appending it to the URL. 

$query_string = urlencode("key1=value1&key2=value2");
$url = "https://example.com/page.php?" . $query_string;

// Output the URL with the encoded query string
echo $url;

Keywords

query strings iPhone PHP functionality troubleshooting

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