douque9815 2017-05-11 10:00
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将2d数组与1D数组迭代进行比较

I have 2 arrays translations(2-dimensional),and line(1-dimensional). translations holds arrays, when ever the index for line and translation[][i] matches i want to print that line bold.otherwise print next line as it is. i have tried it with this code.

$translations[0]=array("Volvo", "BMW", "Toyota");
$translations[1]=array("ferrari", "mustang", "bently");
$lines=array("mustang","BMW");

for($i=0;$i<count($translations);$i++){
    for($j=0;$j<count($translations[$i]);$j++){
        foreach ($lines as $key =>$line){
           if($d==$translation[$i][$j]) {
              echo "<b>" .$translation[$i][$j] . "</b><br>" ;
           }
           else{
              echo $translation[$i][$j]."<br>";
           }
        }
    }
}

the problem here is that it prints translation subarrays element 3 times. i know the problem is in the way i am iterating the arrays, how should i fix this problem? help will be appreciated.

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  • doy57007 2017-05-11 10:05
    关注

    Try this, Hope this will help you out. Instead of looping over $lines array, you can just check with in_array that whether an element is present or not.

    Try this code snippet here

    <?php
    
    ini_set('display_errors', 1);
    
    $translations[0] = array("Volvo", "BMW", "Toyota");
    $translations[1] = array("ferrari", "mustang", "bently");
    $lines = array("mustang", "BMW");
    
    for ($i = 0; $i < count($translations); $i++)
    {
        for ($j = 0; $j < count($translations[$i]); $j++)
        {
            if (in_array($translations[$i][$j], $lines))
            {
                echo "<b>".$translations[$i][$j] ."</b>". PHP_EOL;
            }
            else
            {
                echo $translations[$i][$j] .PHP_EOL;
            }
        }
    }
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
    评论

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