Positive expression matches the property value of an HTML tag

Today, due to the needs of the work, we need to get the attribute value of the HTML tag, immediately think of the regular expression, labeled as follows:

Need to get the value of the label's CX, CY attribute, and then write out a:

$circle is the contents of the circle tag above

Preg_match_all ('/<\s*circle\s+[^>]*?cx\s*=\s* (\ ' |\ ') (. *?) \\1[^>]*?cy\s*=\s* (\ ' |\ ") (. *?) \\1[^>]*?\/?\s*>/i ', $circle, $arr);

Var_dump ($arr);

$arr [2] is the value of CX, $arr [4] is the value of CY.

The above describes the positive expression matching HTML tag property values, including the contents of the content, I hope the PHP tutorial interested in a friend helpful.

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