php - 如何修复 "Recoverable fatal error: Object of class Closure could not be converted to string in..."

Question

当我执行这段代码时出现这个错误。我不知道该怎么办。请帮忙

<?php

$Q = strtoupper($_GET['q']);
$q = ucwords($_GET['q']); 
$result = mysqli_query($conn, "SELECT src FROM mytable WHERE '%$Q%' NOT LIKE 0 OR SRC LIKE '%$Q%'");

$total = mysqli_num_rows($result);
$numRows = function() 
{
    if($total <= 4){
        return 1;
    } else {
        return ($total / 4);
    }
};
if($row = mysqli_fetch_array($result)){ 
?>              
    <h2>Resultados para la búsqueda <?php echo "$q"?></h2>
    <h3>Número de resultados total: <?php echo "$total"?></h3>
<?php  
}

Answer 1

你的问题出在这里

$numRows = (function() use ($total) {
if($total <= 4){
return 1;
}else{
 return ($total / 4);
}
})();

你必须在括号之间包装函数，如果你想传递参数，你应该使用 use()