Libraries tagged by string validation

A collection of common PHP 7 libraries

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JSON Lint for PHP checks a string for invalid or malformed JSON, control character error, incorrect encoding or just plain old syntax errors. It returns comprehensive feedback in a one-line error message (one-line message especially meant for REST APIs) about the first error that occurred in the (JSON) string. It supports both RFC 4627 and (its superseding) RFC 7159.

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A state-machine-driven parser and validator for SQL-like strings.

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This Magento 2 Module add a new cron backend validator

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Strict string validator for Symfony 1.x

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This Magento 2 Module add a new cron backend validator

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Yii 2 Validator that validates string contents for count, blacklist and whitelist.

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A char validator that validates string by chosen conditions.

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Symfony validator for naughty strings

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Symfony validator for mongoid string

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Custom Laravel validator and sanitizer for PHP strings

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Laminas Validator; Let you compare two date strings

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Validates whether a string is a valid ULID

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Validates strings like "(()()()()))((((()()()))(()()()(((()))))))" to ensure counts of opening and closing brackets are equal.

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