Select from json and match against php variable, then output?

Question

PHP

Hello! There is JSON. This is weather data. The code represents data for several days.
The content page has days of the week which are equal to variables in php.
Question: how to select data from a data stream in json (already deconstructed in php) so that a literal selection occurs. For example:
Monday = $mon etc.
Next, you need to find in json a value with the actual date and day of the week equal to "Monday" and if the $mon variable matches the day of the week, then display it on the page with full data (temperature, etc.).
In other words, if data with a date was found in the json data, which was originally indicated on the page, then "pick it up" and display it in the appropriate cell.

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12:00:00"},{"dt":1547996400,"main":{"temp":-12.92,"temp_min":-12.92,"temp_max":-12.92,"pressure":1012.19,"sea_level":1038.74,"grnd_level":1012.19,"humidity":79,"temp_kf":0},"weather":[{"id":800,"main":"Clear","description":"ясно","icon":"01n"}],"clouds":{"all":0},"wind":{"speed":1.53,"deg":80.0035},"rain":{},"snow":{},"sys":{"pod":"n"},"dt_txt":"2019-01-20 15:00:00"},{"dt":1548007200,"main":{"temp":-14.37,"temp_min":-14.37,"temp_max":-14.37,"pressure":1010.91,"sea_level":1037.46,"grnd_level":1010.91,"humidity":72,"temp_kf":0},"weather":[{"id":801,"main":"Clouds","description":"облачно","icon":"02n"}],"clouds":{"all":12},"wind":{"speed":3.07,"deg":107.5},"rain":{},"snow":{},"sys":{"pod":"n"},"dt_txt":"2019-01-20 18:00:00"},{"dt":1548018000,"main":{"temp":-10.38,"temp_min":-10.38,"temp_max":-10.38,"pressure":1009.06,"sea_level":1035.35,"grnd_level":1009.06,"humidity":87,"temp_kf":0},"weather":[{"id":600,"main":"Snow","description":"небольшой снегопад","icon":"13n"}],"clouds":{"all":76},"wind":{"speed":3.32,"deg":142.507},"rain":{},"snow":{"3h":0.06},"sys":{"pod":"n"},"dt_txt":"2019-01-20 21:00:00"},{"dt":1548028800,"main":{"temp":-7.9,"temp_min":-7.9,"temp_max":-7.9,"pressure":1007.15,"sea_level":1033.25,"grnd_level":1007.15,"humidity":91,"temp_kf":0},"weather":[{"id":600,"main":"Snow","description":"небольшой снегопад","icon":"13n"}],"clouds":{"all":88},"wind":{"speed":3.07,"deg":145.003},"rain":{},"snow":{"3h":0.1025},"sys":{"pod":"n"},"dt_txt":"2019-01-21 00:00:00"},{"dt":1548039600,"main":{"temp":-6.08,"temp_min":-6.08,"temp_max":- <b>и т.д.</b>

Answer 1

Iterate over the list array comparing the desired date and pull out the desired data