Which PHP function checks if a string is a valid JSON string?
- json_verify()
- json_decode()
- json_check()
- json_is_valid()
To check if a string is a valid JSON string in PHP, you can use the json_is_valid() function. This function returns true if the string is valid JSON and false if it's not. Using json_decode() will attempt to decode the string and return null on invalid input.
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