如何将数组中的文本与字符串匹配，如果为true则返回其值？
问题描述：
I'm trying to understand how I can match an array against a line of text, if the text inside the array is found, then I'd like to return that value.
I've tried the following but nothing seems to get returned.
$catArray = array(
'0' => 'breakfast',
'1' => 'lunch',
'2' => 'dinner',
);
$text = 'It is your breakfast';
foreach($catArray as $cat){
if(strpos($cat, $text) !== false){
return $cat;
}
}
By this logic, breakfast should return.
答
$catArray = array(
'0' => 'breakfast',
'1' => 'lunch',
'2' => 'dinner',
);
$text = 'It is your breakfast';
foreach($catArray as $cat){
if(strpos($text, $cat) !== false){
echo $cat;
}
}
returns
breakfast
so basically turn around the haystack and the needle
答
You are doing it in a wrong way, also you are returning the variable instead of printing. here is the correct syntax:
strpos(<srting>,<find>,<start-optional>)
i modified your code, now it is working.
$catArray = array(
'0' => 'breakfast',
'1' => 'lunch',
'2' => 'dinner',
);
$text = 'It is your breakfast';
foreach($catArray as $cat){
if(strpos($text, $cat) !== false){
echo($cat);
}
}