json_validate

Checks if a string contains valid JSON.

json_validate Function synopsis

json_validate(
    string $json,
    int $depth = 512,
    int $flags
  ): bool

Parameters

$json

Typestring

The string to validate.

$depth

OptionalTypeintDefault value512

Maximum nesting depth of the structure being decoded. The value must be greater than 0, and less than or equal to 2147483647.

$flags

OptionalTypeint

Currently only JSON_INVALID_UTF8_IGNORE is accepted.

$flags accepts the following constant value

• JSON_INVALID_UTF8_IGNORE

Return value

Typebool

Returns true if the given string is syntactically valid JSON, otherwise returns false.