Question

我有一个循环多次循环，$x as $amount在这种情况下。在循环内部，我有另一个foreach使用preg_match_all来匹配来自$text as $catch的一些数据并将它们抛出到一个数组中以便在别处使用，在这种情况下我们将其设置为$instructions。

我们现在将每个循环中的两个数据发送到一个函数passData($instructions, $amount)。

问题： 当我们从passData()循环内部调用$x函数时，与$instructions数组匹配的数据会在每次迭代时保持重复，如下所示，但结果为I＆＃39 ; m正在寻找不将相同的数据传递到下一个数组，遵循此示例，每个数组应包含相同数量的键0 - 4，而不是0 - 9.

Array is:1
Array
(
    [0] => first paragraph goes here
    [1] => http://www.google.com/g_logo.jpg
    [2] => second paragraph is also here
    [3] => third paragraph is much longer then the rest
    [4] => http://www.facebook.com/f_logo.jpg
)
Array is:2
Array
(
    [0] => first paragraph goes here
    [1] => http://www.google.com/g_logo.jpg
    [2] => second paragraph is also here
    [3] => third paragraph is much longer then the rest
    [4] => http://www.facebook.com/f_logo.jpg
    [5] => first paragraph goes here
    [6] => http://www.google.com/g_logo.jpg
    [7] => second paragraph is also here
    [8] => third paragraph is much longer then the rest
    [9] => http://www.facebook.com/f_logo.jpg
)

我尝试了什么： 我能想到的唯一解决方案是在$text之后调用unset()，但它没有解决问题。

这是我写的代码：

function passData($a, $b){
    echo '<pre>';
    echo 'Array is:' . $b, '</br>';
    print_r($a);
    echo '</pre>';
}

function tryFunc(){

    $x = ['1','2'];
    foreach($x as $amount){

        $text = [
            '1. first paragraph goes here',
            '<img src="http://www.google.com/g_logo.jpg">',
            '2. second paragraph is also here',
            '3. third paragraph is much longer then the rest',
            '<img src="http://www.facebook.com/f_logo.jpg">'
        ];

        foreach($text as $catch){
            if(preg_match_all("/(?:\d)\. (.*)/", $catch, $output_array)) {
                foreach($output_array[1] as $instructions_output){
                    $instructions[] = $instructions_output;
                }
            }
            if(preg_match_all("/<*img[^>]*src *= *[\"\']?([^\"\']*)/", $catch, $cought_array)) {
                $instructions[] = $cought_array[1][0];
            }
        }

        if(passData($instructions, $amount)){
            echo 'passed';
        }
    }
}

tryFunc();

如何阻止foreach循环数据重复进入下一次迭代？

0 个答案: