StringVal

February 3, 2026 ยท View on GitHub

  • StringVal()

Validates whether the input can be used as a string.

v::stringVal()->assert('6');
// Validation passes successfully

v::stringVal()->assert('String');
// Validation passes successfully

v::stringVal()->assert(1.0);
// Validation passes successfully

v::stringVal()->assert(42);
// Validation passes successfully

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

v::stringVal()->assert(true);
// Validation passes successfully

v::stringVal()->assert(new ClassWithToString());
// Validation passes successfully

Templates

StringVal::TEMPLATE_STANDARD

ModeTemplate
default{{subject}} must be a string
inverted{{subject}} must not be a string

Template placeholders

PlaceholderDescription
subjectThe validated input or the custom validator name (if specified).

Categorization

  • Strings
  • Types

Changelog

VersionDescription
3.0.0Templates changed
2.0.0Created

See Also