Easily implement PHP extension on Ubuntu

On Ubuntu, PHP extension is easier to implement than on Windows. on Linux, PHP extension is much simpler and easier.

Reference: How to Make PHP Barcode Reader on Linux

Author: Xiao Ling

Translation: yushulx

Several steps to build PHP Barcode extension

Install DBR.

To build PHP extensions, you must use the source code of the corresponding version:

php –v

Download the PHP source code.

Decompress the code and switchExtDirectory:

cd ~/Downloads/php-5.5.9/ext

Create extensionDbr:

./ext_skel --extname=dbrcd dbr

EditConfig. m4, Add the header file and library file path:

PHP_ARG_ENABLE(dbr, whether to enable dbr support, dnl Make sure that the comment is aligned: [  --enable-dbr           Enable dbr support]) if test "$PHP_DBR" != "no"; then   PHP_ADD_LIBRARY_WITH_PATH(DynamsoftBarcodeReaderx64, /home/xiao/Dynamsoft/BarcodeReader4.0/Redist, DBR_SHARED_LIBADD)    PHP_ADD_INCLUDE(/home/xiao/Dynamsoft/BarcodeReader4.0/Include)   PHP_SUBST(DBR_SHARED_LIBADD)   PHP_NEW_EXTENSION(dbr, dbr.c, $ext_shared) fi

EditDbr. c:

#ifdef HAVE_CONFIG_H#include "config.h"#endif #include "php.h"#include "php_ini.h"#include "ext/standard/info.h"#include "php_dbr.h" #include "If_DBR.h"#include "BarcodeFormat.h"#include "BarcodeStructs.h"#include "ErrorCode.h"#include 
 
   /* If you declare any globals in php_dbr.h uncomment this:ZEND_DECLARE_MODULE_GLOBALS(dbr)*/ /* True global resources - no need for thread safety here */static int le_dbr; /* {{{ dbr_functions[] * * Every user visible function must have an entry in dbr_functions[]. */const zend_function_entry dbr_functions[] = {    PHP_FE(DecodeBarcodeFile,   NULL)       /* For testing, remove later. */    PHP_FE_END  /* Must be the last line in dbr_functions[] */};/* }}} */ /* {{{ dbr_module_entry */zend_module_entry dbr_module_entry = {#if ZEND_MODULE_API_NO >= 20010901    STANDARD_MODULE_HEADER,#endif    "dbr",    dbr_functions,    PHP_MINIT(dbr),    PHP_MSHUTDOWN(dbr),    PHP_RINIT(dbr),     /* Replace with NULL if there's nothing to do at request start */    PHP_RSHUTDOWN(dbr), /* Replace with NULL if there's nothing to do at request end */    PHP_MINFO(dbr),#if ZEND_MODULE_API_NO >= 20010901    PHP_DBR_VERSION,#endif    STANDARD_MODULE_PROPERTIES};/* }}} */ #ifdef COMPILE_DL_DBRZEND_GET_MODULE(dbr)#endif /* {{{ PHP_INI *//* Remove comments and fill if you need to have entries in php.iniPHP_INI_BEGIN()    STD_PHP_INI_ENTRY("dbr.global_value",      "42", PHP_INI_ALL, OnUpdateLong, global_value, zend_dbr_globals, dbr_globals)    STD_PHP_INI_ENTRY("dbr.global_string", "foobar", PHP_INI_ALL, OnUpdateString, global_string, zend_dbr_globals, dbr_globals)PHP_INI_END()*//* }}} */ /* {{{ php_dbr_init_globals *//* Uncomment this function if you have INI entriesstatic void php_dbr_init_globals(zend_dbr_globals *dbr_globals){    dbr_globals->global_value = 0;    dbr_globals->global_string = NULL;}*//* }}} */ /* {{{ PHP_MINIT_FUNCTION */PHP_MINIT_FUNCTION(dbr){    /* If you have INI entries, uncomment these lines     REGISTER_INI_ENTRIES();    */    return SUCCESS;}/* }}} */ /* {{{ PHP_MSHUTDOWN_FUNCTION */PHP_MSHUTDOWN_FUNCTION(dbr){    /* uncomment this line if you have INI entries    UNREGISTER_INI_ENTRIES();    */    return SUCCESS;}/* }}} */ /* Remove if there's nothing to do at request start *//* {{{ PHP_RINIT_FUNCTION */PHP_RINIT_FUNCTION(dbr){    return SUCCESS;}/* }}} */ /* Remove if there's nothing to do at request end *//* {{{ PHP_RSHUTDOWN_FUNCTION */PHP_RSHUTDOWN_FUNCTION(dbr){    return SUCCESS;}/* }}} */ /* {{{ PHP_MINFO_FUNCTION */PHP_MINFO_FUNCTION(dbr){    php_info_print_table_start();    php_info_print_table_header(2, "dbr support", "enabled");    php_info_print_table_end();     /* Remove comments if you have entries in php.ini    DISPLAY_INI_ENTRIES();    */}/* }}} */ // Barcode formatconst char * GetFormatStr(__int64 format){    if (format == CODE_39)        return "CODE_39";    if (format == CODE_128)        return "CODE_128";    if (format == CODE_93)        return "CODE_93";    if (format == CODABAR)        return "CODABAR";    if (format == ITF)        return "ITF";    if (format == UPC_A)        return "UPC_A";    if (format == UPC_E)        return "UPC_E";    if (format == EAN_13)        return "EAN_13";    if (format == EAN_8)        return "EAN_8";    if (format == INDUSTRIAL_25)        return "INDUSTRIAL_25";    if (format == QR_CODE)        return "QR_CODE";    if (format == PDF417)        return "PDF417";    if (format == DATAMATRIX)        return "DATAMATRIX";     return "UNKNOWN";} PHP_FUNCTION(DecodeBarcodeFile){    array_init(return_value);     // Get Barcode image path    char* pFileName = NULL;    bool isNativeOuput = false;    bool isLogOn = false;    int iLen = 0;     if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sb|b", &pFileName, &iLen, &isNativeOuput, &isLogOn) == FAILURE) {        RETURN_STRING("Invalid parameters", true);    }     if (isLogOn)    {        printf("params: %s, %d, %d\n", pFileName, iLen, isNativeOuput);    }     // Dynamsoft Barcode Reader: init    __int64 llFormat = (OneD | QR_CODE | PDF417 | DATAMATRIX);    int iMaxCount = 0x7FFFFFFF;    int iIndex = 0;    ReaderOptions ro = {0};    pBarcodeResultArray pResults = NULL;    int iRet = -1;    char * pszTemp = NULL;     // Initialize license    iRet = DBR_InitLicense("84D34246FC1BC4BDD4078D71FCB5A3AA");    printf("DBR_InitLicense ret: %d\n", iRet);    ro.llBarcodeFormat = llFormat;    ro.iMaxBarcodesNumPerPage = iMaxCount;     // Decode barcode image    int ret = DBR_DecodeFile(pFileName, &ro, &pResults);    if (ret == DBR_OK)    {        int count = pResults->iBarcodeCount;        pBarcodeResult* ppBarcodes = pResults->ppBarcodes;        pBarcodeResult tmp = NULL;        char result[2048] = {0};        int i = 0;        if (count == 0)        {            add_next_index_string(return_value, "No Barcode detected", true);        }         // loop all results        for (; i < count; i++)        {            char barcodeResult[1024];             // A barcode result.            tmp = ppBarcodes[i];            {                // Working with PHP array: http://php.net/manual/en/internals2.variables.arrays.php                zval *tmp_array;                // Initialize zval                MAKE_STD_ZVAL(tmp_array);                array_init(tmp_array);                // Add format & value to an array                add_next_index_string(tmp_array, GetFormatStr(tmp->llFormat), true);                add_next_index_string(tmp_array, tmp->pBarcodeData, true);                // Add result to returned array                add_next_index_zval(return_value, tmp_array);            }        }         // Dynamsoft Barcode Reader: release memory        DBR_FreeBarcodeResults(&pResults);         if (isLogOn && isNativeOuput)        {            printf("Native result: %s\n", result);        }         if (isNativeOuput)        {            add_next_index_string(return_value, result, true);        }    }    else    {        add_next_index_string(return_value, "No Barcode detected", true);    } }
 

To build a PHP extension module independently, you need to usePhpize. Install the SDK:

sudo apt-get install php5-dev

Build the PHP extension module:

phpize./configuremake

The C90 specification does not support the Boolean type. If the error"Unknown type name 'Bool'", Add the header file:

#include 
 

Dynamic link libraryDbr. soWill be automatically generated to the DirectoryModulesBelow:

Simple PHP Barcode application

CreateREader. php:

Install the compiled extension:

sudo make install

After installation (/Usr/lib/php5/20121212/dbr. so) AddPhp. iniFile:

locate php.ini

You can find several related php. INI files by running commands. Which one is used? You can select one or create one. I selectedPhp. ini-production:

extension=/usr/lib/php5/20121212/dbr.so

Run PHP barcode reader. remember the file path with php. ini:

php -c /usr/share/php5/php.ini-production reader.php

Source code

Https://github.com/dynamsoftlabs/linux-php-barcode-reader-