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respect-validation/docs/validators/FalseVal.md
Henrique Moody d2198dfd01
 Replace isValid() calls with assert() 
There's more value on showing how `assert()` displays the validation
messages than simply showing if `isValid()` returns `true` or `false`.

However, that increases the chances of having outdated documentation, so
I created a doc linter that updates the Markdown files with the
correct message.
2026-01-13 23:37:06 -07:00

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FalseVal

  • FalseVal()

Validates if a value is considered as false.

v::falseVal()->assert(false);
// Validation passes successfully

v::falseVal()->assert(0);
// Validation passes successfully

v::falseVal()->assert('0');
// Validation passes successfully

v::falseVal()->assert('false');
// Validation passes successfully

v::falseVal()->assert('off');
// Validation passes successfully

v::falseVal()->assert('no');
// Validation passes successfully

v::falseVal()->assert('0.5');
// → "0.5" must evaluate to `false`

v::falseVal()->assert('2');
// → "2" must evaluate to `false`

Templates

FalseVal::TEMPLATE_STANDARD

Mode Template
default {{subject}} must evaluate to false
inverted {{subject}} must not evaluate to false

Template placeholders

Placeholder Description
subject The validated input or the custom validator name (if specified).

Categorization

  • Booleans

Changelog

Version Description
1.0.0 Renamed from False to FalseVal
0.8.0 Created as False

See also: