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PHP create 2d empty array

I have 2 dimensions, such row=6 and col=5. The size can change. How can I create an 2D empty array. Following approach is NOT what I am looking for, because it

Formik useField hook doesn't pass name or label props?

My goal really isn't too complex, I need custom behaviour for the form fields (input, select and date) onBlur(). Am starting off with the input because the sele

cannot retrieve value from database for textbox while other field is fine

As you can see, all text box have value but did not appear, while the field that were not text box only can appear.. I've checked = "" (maybe symbols issue) but

Is there any way to run a service for every 6 days in crontab?

I have tried the crontab schedule 0 0 */6 * * to run my service for every 6 days. The service should start to run at 6th day of the month and continue to run fo

Docker-compose postgres cant init my tables in newly created database

I am trying to automate the INIT process in Docker so whenever I docker-compose up in an empty data directory it will create two DBS 1st one is Airflow and the

Hide Mobile Browser Address bar on full page scroll snap layout

So I've been running into this annoying problem and I don't seem to be able to fix it by myself. I'm currently working on an experimental App written Angular (1

Illumina Adapter sequence

I am using Cutadapt to remove adapter sequences on paired end reads.I am creating a pipeline so I need some adapter sequence if not exact. Is there any link whe