Question

$ details ['wasprice']的值包含单词“was”（即$ 23.99）。我想删除单词“was”并将值保留为“$ 23.99”。

以下代码：

foreach($html->find('div.product-details-contents') as $content) {
    $detail['img'] = $content->find('img.product-details-image',0)->src;
    $detail['title'] = $content->find('span.title', 0)->plaintext;
    $detail['units'] = $content->find('span.unit-size', 0)->plaintext;
    $detail['wasprice'] = $content->find('span.was-price', 0)->plaintext;
    $detail['nowprice'] = $content->find('span.special-price', 0)->plaintext;

$product[] = $detail;

}

print_r($product);

我只是想知道如何解决这个问题。

谢谢

Answer 1

使用str_replace()：

$detail['wasprice'] = str_replace('was ', '', $detail['wasprice']);

Answer 2

if (substr($detail['wasprice'], 0, 4) === 'was ') {
  $detail['wasprice'] = substr($detail['wasprice'], 4);
} else {
  // ruh-roh
}

Answer 3

我会在$使用preg_replace()：

之前替换任何内容

$detail['wasprice'] = preg_replace('/([^$]*)(.*)/', '$2', $detail['wasprice']);

Answer 4

第三种解决方案：

$detail['wasprice'] = ltrim($detail['wasprice'], " asw");

Answer 5

使用PHP sanitize filter删除所有非数字的内容，然后输入美元（$）符号。

 $newprice = "$".filter_var($wasprice, FILTER_SANITIZE_NUMBER_FLOAT, FILTER_FLAG_ALLOW_FRACTION | FILTER_FLAG_ALLOW_THOUSAND);

在示例代码中使用它：

<?php 
foreach($html->find('div.product-details-contents') as $content) {
  $detail['img'] = $content->find('img.product-details-image',0)->src;
  $detail['title'] = $content->find('span.title', 0)->plaintext;
  $detail['units'] = $content->find('span.unit-size', 0)->plaintext;
  $detail['wasprice'] = "$".filter_var($content->find('span.was-price', 0)->plaintext, FILTER_SANITIZE_NUMBER_FLOAT, FILTER_FLAG_ALLOW_FRACTION | FILTER_FLAG_ALLOW_THOUSAND);
  $detail['nowprice'] = $content->find('span.special-price', 0)->plaintext;
  $product[] = $detail;
}
print_r($product);
?>

整理一个数组的某个值

5 个答案: