What to do if php placeholder cannot be used

php placeholder cannot be used because of a code error. The solution is: first open the corresponding code file; then change "placeholder "Your name here"" to "placeholder="Your name here"" that is Can.

The operating environment of this article: windows7 system, PHP7.1 version, DELL G3 computer

Error code:

I don't know why the placeholder text is not showing in the field...

Workaround:

The missing "=" in the code should be:

placeholder="Your name here"

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