April 19th, 2017, 07:40 PM
How To Check Whether An Html Element Or Plain Text Exists On A Page Or Not
Imagine you want to only provide your download link to those who tweet about you. Now, how would you code it ?
Let's make it simple for you to understand.
Let's say you want to write a php script that checks if a certain html element (eg. name=username) or plain text exists or not.
If it exists then to give you an alert "TRUE"; Else alert: FALSE.
In this example, you want the script to check this page:
And you want it to check if the following text (exact match) exists or not:
"I'd like to put forward an Idea"
How would you code it ? Can we see 2-3 examples ?
I'd be grateful if you can show another example for a fuzzy match. Eg:
* like to put forward *
This is an interesting topic. Base the boolean around what exists or not on a page.
Curious to see what the code would look like and php is capable of doing it in how many lines of code.
April 19th, 2017, 08:07 PM
Don't do it that way. Use their API to do a search for people who tweeted at you.
April 21st, 2017, 01:25 PM
You'd want to use the above method if you're talking specifically about Twitter, but the basic string and regular expression functions could be used otherwise, to look for matching text.
PHP: strpos - Manual
PHP: preg_match - Manual
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April 23rd, 2017, 06:27 PM
I'm sorry, I don't understand. name=username is not an HTML element.
April 24th, 2017, 03:33 PM
Thank you Requinix and Sepodati.