在PHP中，通过单词的前导字符来拆分字符串 - Split a string in PHP by leading char of a word

Split a string in PHP by leading char of a word

本文关键字：字符字符串拆分单词 PHP | 更新日期: 2023-09-27

我在字符串中存储了一个Instagram标题

类似于：

$caption_text ="This is a beautiful photo #beautiful #photo #awesome #img";

我的目标是将字符串拆分为一个包含标签的数组，并将字符串的其余部分保留在一个变量中

例如

$matches[0] --> "#beautiful"
$matches[1] --> "#photo" etc..
also $leftoverString="This is a beautiful photo";

如有任何帮助，将不胜感激

$caption_text ="This is a beautiful photo #beautiful #photo #awesome #img";
if (preg_match_all('/(^|'s)(#'w+)/', $caption_text, $arrHashtags) > 0) {
    print_r($arrHashtags[0]);
}

$caption_text = "This is a beautiful photo #beautiful #photo #awesome #img";
preg_match_all ( '/#[^ ]+/' , $caption_text, $matches );
$tweet = preg_replace('/#([^ 'r'n't]+)/', '', $caption_text);

您可以尝试：

$caption_text ="This is a beautiful photo #beautiful #photo #awesome #img";
$array = explode(' ', $caption_text);
$photos = array();
foreach ($array as $a) {
    if ($a[0] == '#') {
        $photos[] = $a;
    }
}

一种可能性是按"进行分解，然后检查每个项目是否有标记。如果没有，你可以让其他人再次成为一个字符串。例如：

$arr_text = explode(' ',"This is a beautiful photo #beautiful #photo #awesome #img");
$tmp = array();
foreach ($arr_text as $item) {
    if(strpos($item,'#') === 0) {
        //do something
    } else  {
        $tmp[] = $item;
    }
}
implode(' ', $tmp);

希望这能有所帮助。

<?php
$caption_text ="This is a beautiful photo #beautiful #photo #awesome #img";
$new = explode(" ",$caption_text);
foreach($new as $key=>$value)
{
if($value[0] == "#")
$match[] = $value;
else
$rem .= $value." "; 
}
print_r($rem).PHP_EOL;
print_r($match)
?>

$temp = explode(' ', $caption_text);
$matches = array();
foreach ($temp as $element) {
    if ($element[0] == '#') {
       $matches[] = $element;
    }
    else
        $leftoverstring .= ' '.$element;
}
print_r($matches);
echo $leftoverstring;

$caption_text ="This is a beautiful photo #beautiful #photo #awesome #img";
$matches = explode('#',$caption_text);
for($i = 0; $i<count($matches);$i++)
{ 
   $matches[$i]= '#'.$matches[$i];
}
print_r($matches);

<?php
$caption_text ="This is a beautiful photo #beautiful #photo #awesome #img";
$new = explode(" #",$caption_text);
print_r($new);
?>