Primitives

Null

Is nullIs not null

static function(Assert $assert) {
    $assert->null($someValue, 'Optional error message');
}

static function(Assert $assert) {
    $assert
        ->not()
        ->null($someValue, 'Optional error message');
}

Booleans

True or FalseTrueFalseNeither True nor FalseNot TrueNot False

static function(Assert $assert) {
    $assert->bool($someValue, 'Optional error message');
}

static function(Assert $assert) {
    $assert->true($someValue, 'Optional error message');
}

static function(Assert $assert) {
    $assert->false($someValue, 'Optional error message');
}

static function(Assert $assert) {
    $assert->not()->bool($someValue, 'Optional error message');
}

static function(Assert $assert) {
    $assert->not()->true($someValue, 'Optional error message');
}

static function(Assert $assert) {
    $assert->not()->false($someValue, 'Optional error message');
}

Resource

static function(Assert $assert) {
    $assert->resource($someValue);
}

resources are values return by fopen functions and such.

Numbers

Any numberIs an integerIs a floatGreater thanGreater than or equalLess thanLess than or equal

static function(Assert $assert) {
    $assert->number($someValue);
}

static function(Assert $assert) {
    $assert
        ->number($someValue)
        ->int('Optional error message');
}

static function(Assert $assert) {
    $assert
        ->number($someValue)
        ->float('Optional error message');
}

static function(Assert $assert) {
    $assert
        ->number($someValue)
        ->greaterThan($someIntOrFloat, 'Optional error message');
}

static function(Assert $assert) {
    $assert
        ->number($someValue)
        ->greaterThanOrEqual($someIntOrFloat, 'Optional error message');
}

static function(Assert $assert) {
    $assert
        ->number($someValue)
        ->lessThan($someIntOrFloat, 'Optional error message');
}

static function(Assert $assert) {
    $assert
        ->number($someValue)
        ->lessThanOrEqual($someIntOrFloat, 'Optional error message');
}

Strings

Any stringIs emptyContains a valueMatches a regexStarts withEnds with

static function(Assert $assert) {
    $assert->string($someValue);
}

static function(Assert $assert) {
    $assert
        ->string($someValue)
        ->empty('Optional error message');
}

static function(Assert $assert) {
    $assert
        ->string($haystack)
        ->contains($needle, 'Optional error message');
}

static function(Assert $assert) {
    $assert
        ->string($someValue)
        ->matches($regex, 'Optional error message');
}

static function(Assert $assert) {
    $assert
        ->string($someValue)
        ->startsWith($prefix, 'Optional error message');
}

static function(Assert $assert) {
    $assert
        ->string($someValue)
        ->endsWith($suffix, 'Optional error message');
}

You can add a call to ->not() after ->string() to inverse the following assertion.

You can chain multiple assertions on the same string like this:

static function(Assert $assert) {
    $assert
        ->string($someValue)
        ->startsWith($prefix, 'Optional error message')
        ->endsWith($suffix, 'Optional error message');
}

Arrays

Is an arrayHas a keyDoesn't have a keyCountDoesn't have countContains a valueDoesn't contain a value

static function(Assert $assert) {
    $assert->array($someValue);
}

static function(Assert $assert) {
    $assert
        ->array($someValue)
        ->hasKey($intOrString, 'Optional error message');
}

static function(Assert $assert) {
    $assert
        ->array($someValue)
        ->not()
        ->hasKey($intOrString, 'Optional error message');
}

static function(Assert $assert) {
    $assert->count($count, $array, 'Optional error message');
}

static function(Assert $assert) {
    $assert
        ->not()
        ->count($count, $array, 'Optional error message');
}

static function(Assert $assert) {
    $assert
        ->expected($someValue)
        ->in($iterable, 'Optional error message');
}

static function(Assert $assert) {
    $assert
        ->expected($someValue)
        ->not()
        ->in($iterable, 'Optional error message');
}