Php 如何应用正则表达式筛选字符串

如何仅将正则表达式应用于筛选器

[video src="http://duel.evotechaustin.com/wp-content/uploads/2010/09/kramer.m4v" width="480" height="360" id="b-test" class="player" ] 

从以下字符串

Is simply dummy text of the printing and typesetting industry. 
[video src="http://duel.evotechaustin.com/wp-content/uploads/2010/09/kramer.m4v"          width="480" height="360" id="b-test" class="player" ]
Lorem Ipsum has been the industry's standard dummy text ever since the 1500s.

或者不使用正则表达式和Dom，有没有办法得到相同的结果

preg_match("/\[video[^\]]+\]/i", $subject, $matches);

$matches[0]

包含

[video src="http://duel.evotechaustin.com/wp-content/uploads/2010/09/kramer.m4v" width="480" height="360" id="b-test" class="player"] 

$matches[0]

包含

[video src="http://duel.evotechaustin.com/wp-content/uploads/2010/09/kramer.m4v" width="480" height="360" id="b-test" class="player"] 

---

这是一个短代码，您可以轻松使用来处理这些短代码：

function video_shortcode( $atts, $content = null ) {
  // do whatever you want to to
}
add_shortcode('video', 'video_shortcode');

在

$atts

数组中，您将拥有视频短码中所有属性的列表：

array(
    "src" => "http://duel.evotechaustin.com/wp-content/uploads/2010/09/kramer.m4v",
    "width" => "480",
    "height" => "360",
    "id" => "b-test",
    "class" => "player"
)

---

这是一个短代码，您可以轻松使用来处理这些短代码：

function video_shortcode( $atts, $content = null ) {
  // do whatever you want to to
}
add_shortcode('video', 'video_shortcode');

在

$atts

数组中，您将拥有视频短码中所有属性的列表：

array(
    "src" => "http://duel.evotechaustin.com/wp-content/uploads/2010/09/kramer.m4v",
    "width" => "480",
    "height" => "360",
    "id" => "b-test",
    "class" => "player"
)

---

使用substring和indexOf

比如说,

htmlString = document.getElementById('div').innerHtml();
startIndex = htmlString.indexOf("[video");
endIndex = htmlString.indexOf("]", startIndex);
output = htmlString.substring(startIndex, endIndex);

---

使用substring和indexOf

比如说,

htmlString = document.getElementById('div').innerHtml();
startIndex = htmlString.indexOf("[video");
endIndex = htmlString.indexOf("]", startIndex);
output = htmlString.substring(startIndex, endIndex);

---

在PHP中难以使用JavaScript:）在PHP中难以使用JavaScript:）