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Getting Started: Introduction; A simple tutorial
Language Reference: Basic syntax; Types; Variables; Constants; Expressions; Operators; Control Structures; Functions; Classes and Objects; Namespaces; Enumerations; Errors; Exceptions; Fibers; Generators; Attributes; References Explained; Predefined Variables; Predefined Exceptions; Predefined Interfaces and Classes; Predefined Attributes; Context options and parameters; Supported Protocols and Wrappers

Security: Introduction; General considerations; Installed as CGI binary; Installed as an Apache module; Session Security; Filesystem Security; Database Security; Error Reporting; User Submitted Data; Hiding PHP; Keeping Current
Features: HTTP authentication with PHP; Cookies; Sessions; Handling file uploads; Using remote files; Connection handling; Persistent Database Connections; Command line usage; Garbage Collection; DTrace Dynamic Tracing

Function Reference: Affecting PHP's Behaviour; Audio Formats Manipulation; Authentication Services; Command Line Specific Extensions; Compression and Archive Extensions; Cryptography Extensions; Database Extensions; Date and Time Related Extensions; File System Related Extensions; Human Language and Character Encoding Support; Image Processing and Generation; Mail Related Extensions; Mathematical Extensions; Non-Text MIME Output; Process Control Extensions; Other Basic Extensions; Other Services; Search Engine Extensions; Server Specific Extensions; Session Extensions; Text Processing; Variable and Type Related Extensions; Web Services; Windows Only Extensions; XML Manipulation; GUI Extensions

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PHP Function List

https:/www.php.net/manual/en/function.mcrypt-module-is-block-algorithm.php doesn't exist. Closest matches:

mcrypt_module_is_block_algorithm
mcrypt_module_is_block_algorithm_mode
mcrypt_enc_is_block_algorithm
mcrypt_enc_is_block_algorithm_mode
mcrypt_module_is_block_mode
mcrypt_list_algorithms
mcrypt_module_get_algo_block_size
mcrypt_enc_get_algorithms_name
mcrypt_module_get_algo_key_size
sodium_crypto_shorthash
mcrypt_module_self_test
sodium_crypto_scalarmult
mcrypt_enc_is_block_mode
mcrypt_module_open
mcrypt_module_close
sodium_crypto_box_seal_open
sodium_crypto_scalarmult_base
sodium_crypto_aead_aegis128l_encrypt
sodium_crypto_aead_aegis128l_decrypt
runkit7_function_remove
runkit7_function_rename
random_cryptosafeengine
sodium_crypto_shorthash_keygen
sodium_crypto_scalarmult_ristretto255
mcrypt_module_get_supported_key_sizes
mongodb_driver_exception_encryptionexception
zookeeperauthenticationexception
sodium_crypto_generichash_update
sodium_crypto_generichash
libxml_set_external_entity_loader

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