PHP base64 the conversion of data to images

1. Parse Base64 data into pictures

The problem is, data:image/bmp;base64, included in the encoded contents. This would result in invalid image data when the Base64 function decodes it. Remove that data in the function before decoding the string.

$base = "data:image/bmp;base64,qk22egaaaaaaadyaaaaoaaaaiaaaacuaaaabacaaaaaaaiasaaascwaaegsaaaaaaaaaaaaa/waa// 4aap/5aad/9qaa//eaap/saad/5waa/+maap/faad/2gaa/9yaap/raad/zqaa/8gaap/eaad/waaa/7saap+3aad/sgaa/64aap+paad/pqaa /6eaap+caad/lwaa/5maap+oaad/igaa/4yaap+baad/fqaa/3gaap//aad//gaa//kaap/0aad/8qaa/+waap/oaad/4waa/98aap/aaad/ 1gaa/9iaap/naad/yaaa/8qaap/aaad/uwaa/7yaap+yaad/rgaa/6kaap+laad/oaaa/5waap+xaad/kwaa/44aap+kaad/hqaa/ 4eaap99aad/eaaa//8aap/+aad/+qaa//uaap/waad/7aaa/+gaap/jaad/3gaa/9oaap/waad/0qaa/80aap/iaad/xaaa/8aaap+7aad/ twaa/7maap+uaad/qqaa/6uaap+haad/naaa/5caap+taad/jwaa/4oaap+gaad/ggaa/30aap94aad//waa//0aap/6aad/9qaa//aaap/ saad/5waa/+maap/faad/2gaa/9uaap/raad/zqaa/8gaap/eaad/vwaa/7saap+3aad/sgaa/64aap+paad/pqaa/6aaap+caad/maaa/ 5maap+paad/igaa/4yaap+baad/fqaa/3gaap//aad//gaa//kaap/0aad/8qaa/+waap/naad/4waa/94aap/aaad/1gaa/9iaap/naad/ yaaa/8qaap+/aad/uwaa/7caap+yaad/rgaa/6kaap+laad/oqaa/5waap+yaad/kwaa/44aap+kaad/hgaa/4eaap99aad/eaaa//8aap/+ Aad/+gaa//uaap/waad/7aaa/+gaap/jaad/3gaa/9oaap/waad/0gaa/80aap/jaad/xaaa/8aaap+7aad/twaa/7iaap+uaad/qqaa/6uaap+haad/naaa/5gaap+taad/jgaa/4oaap+ gaad/ggaa/3waap94aad//waa//0aap/5aad/9qaa//aaap/saad/5waa/+maap/naed/sqcf/6ea3/+zap//mqd//5ka//+zap//mqd//5ka/ /+zap//mqd//5ka//+zap//mwdp/5waj/+cacd/maaa/5maap+paad/igaa/4yaap+caad/fqaa/3gaap//aad//gaa//kaap/1aad/8qaa/+ Waap/iabd/rac//5ka//+zap//mqd//5ka//+zap//mqd//5ka//+zap//mqd//5ka//+zap//mqd//5ka//+zap//mqd//5ka//+yai//kwaq /48aap+kaad/hgaa/4eaap98aad/eaaa//8aap/+aad/+qaa//uaap/waad/3aaw/54a7/+zap//mqd//5ka//+zap//mqd//5ka//+zap// mqd//5ka//+zap//mqd//5ka//+zap//mqd//5ka//+zap//mqd//5ka//+yam//kaaw/4oaap+faad/gqaa/30aap94aad//waa//4aap/ 6aad/9qaa/+saep+jan//mqd//5ka//+zap//mqd//5ka//+zap//oadf/6uav/+kal//owc//6iav/+gal//nwc//5wa3/+zap//mqd//5ka/ /+zap//mqd//5ka//+yao//iwaq/4uaap+baad/faaa/3gaap//aad//gaa//oaap/0aad/ugcf/5ka//+zap//mqd//5ka//+han//vwbg/ 80aep/maad/yqaa/8qaap+/aad/uwaa/7caap+yaad/rqaa/6kaep+gagd/mgdf/5ka//+zap//mqd//5ka//+val//hgaa/4eaap99aad/ Eaaa//8aap/+aad/+gaa/+kaip+zap//mqd//5ka//+zap//swcf/9yaep/vaad/vabg/7magp+waid/sqbw/7saip+4acd/qaca/6uagp+jaid/owbg/6uaap+gabd/mgcf/ 5ka//+zap//mqd//5ka//+laed/gqaa/30aap94aad//waa//0aap/6aad/wqcp/5ka//+zap//mqd//6ia3//aabd/zgaw/6ea3/+zap//mqd 5ka//+zap//mqd//5ka//+zap//mqd//5ka//+zap//mwdp/6aaep+cabd/mqdf/5ka//+zap//mqd//5ean/+baad/fqaa/3gaap//aad// gaa//kaap+qam//mqd//5ka//+zap//xwbg/94aap+lam//mqd//5ka//+zap//mqd//5ka//+zap//mqd//5ka//+zap//mqd//5ka//+zap/ /mwc//5waap+yagd/mqd//5ka//+zap//lwdf/4eaap99aad/eaaa//8aap/+aad/+qaa/5ka//+zap//mqd//5ka///eabd/yqbq/5ka//+ zap//mqd//5ka//+zap//mqd//5ka//+zap//mqd//5ka//+zap//mqd//5ka//+zap//mwbq/5gaep+zap//mqd//5ka//+zap//ggaa/ 30aap95aad//waa//4aap/5aad/mqd//5ka//+zap//owdf/+maap+7aid/mqd//5ka//+zap//owdp/64aj/+zap//mqd//5ka//+zap// Pacp/50az/+zap//mqd//5ka//+aaid/maaa/5ga3/+zap//mqd//5ka//+caad/faaa/3gaap//aad//gaa//oaap+zap//mqd//5ka//+tal 4waa/7wagp+zap//mqd//5ka//+zaid/yaaa/5ka//+zap//mqd//5ka//+yaad/owca/5ka//+zap//mqd//5oagp+yaad/lwc//5ka//+ Zap//mqd//4eaap99aad/eaaa//8aap/9aad/+qaa/5ka//+zap//mqd//60av//jaad/vaca/5ka//+zap//mqd//7iagp/iaad/mqd//5ka//+zap//mqd//7iaap+ jaid/mqd//5ka//+zap//mgca/5caap+xal//mqd//5ka//+zap//gqaa/30aap95aad//waa//0aap/5aad/3gba/9oaqp/xaed/2aaw/+ Maap+7aid/mqd//5ka//+zap//swca/8gaap+zap//mqd//5ka//+zap//sgaa/6magp+zap//mqd//5ka//+aaid/lwaa/5qamp+saed/jwba /4saqp+baad/fqaa/3kaap//aad//gaa//oaap/daed/2gba/9caqp/zadd/4waa/7wagp+zap//mqd//5ka//+zaid/yaaa/5ka//+zap// Mqd//5ka//+zaad/owca/5ka//+zap//mqd//5oagp+yaad/laaw/5iaqp+oaed/iwba/4eaap98aad/eqaa//8aap/+aad/+gaa/5ka//+zap mqd//60av//kaad/vaca/5ka//+zap//mqd//7magp/jaad/xaaa/78aap+7aad/twaa/7iaap+jaid/mqd//5ka//+zap//mgca/5caap+ xal//mqd//5ka//+zap//gqaa/3waap94aad//waa//4aap/5aad/mqd//5ka//+zap//rqc//+maap+8aid/mqd//5ka//+zap//swca/ 8gaap/eaad/waaa/7saap+2aad/sgaa/6magp+zap//mqd//5ka//+aaid/lwaa/5cav/+zap//mqd//5ka//+baad/fqaa/3gaap//aad// gaa//kaap+zap//mqd//5ka//+jan//4waa/7wagp+zap//mqd//5ka//+zaid/yaaa/8qaap/aaad/uwaa/7yaap+yaad/owca/5ka//+zap/ /mqd//5oagp+xaad/madf/5ka//+zap//mqd//4eaap99aad/eqaa//8aap/9aad/+qaa/5ka//+zap//mqd//5ka///eabd/yqbq/5ka//+zap//mqd//7magp/iaad/xaaa/ 78aap+7aad/twaa/7iaap+jaid/mqd//5ka//+zap//mwba/5caep+zap//mqd//5ka//+zap//gqaa/30aap94aad//waa//4aap/5aad/ qgdp/5ka//+zap//mqd//8cayp/faad/pqdp/5ka//+zap//swca/8kaap/eaad/vwaa/7saap+2aad/swaa/6magp+zap//mqd//5sav/+ baad/mabg/5ka//+zap//mqd//5ca3/+baad/fqaa/3kaap//aad//gaa//kaap/bai//mqd//5ka//+zap//ogdf/9saep/wabd/padp/5ka/ /+yaid/yaaa/8qaap/aaad/uwaa/7yaap+yaad/owca/5ka//+bam//oaaq/5waep+zan//mqd//5ka//+zap//kgcf/4eaap99aad/eqaa// 8aap/+aad/+gaa/+kaip+zap//mqd//5ka//+zap//swcf/9yaep/vaad/wabq/8aaqp/iaad/xaaa/78aap+7aad/tgaa/7iaap+paed/pabq /6qaap+gabd/mgdp/5ka//+zap//mqd//5ka//+laed/gqaa/30aap94aad//waa//4aap/5aad/9qaa/7oan/+zap//mqd//5ka//+zap// oqdf/78ayp/raad/zqaa/8kaap/eaad/waaa/7saap+2aad/sgaa/64aap+oabd/oabg/5oa3/+zap//mqd//5ka//+zap//lqc//4uaap+ Baad/fqaa/3kaap//aad//gaa//kaap/1aad/6waq/6ma3/+zap//mqd//5ka//+zap//mqd//5ka//+gan//pqc//6qav/+jal//ogc//6aav /+gal//nadf/5ka//+zap//mqd//5ka//+zap//mqd//5ga7/+labd/hgaa/4iaap99aad/eaaa//8aap/+aad/+gaa//uaap/xaad/3aaw/54a7/+zap//mqd//5ka//+ zap//mqd//5ka//+zap//mqd//5ka//+zap//mqd//5ka//+zap//mqd//5ka//+zap//mqd//5ka//+yam//kqaw/4oaap+gaad/gqaa/ 30aap95aad//waa//4aap/5aad/9qaa//eaap/saad/3qag/6wav/+zap//mqd//5ka//+zap//mqd//5ka//+zap//mqd//5ka//+zap//mqd 5ka//+zap//mqd//5ka//+zap//macp/5maep+oaad/igaa/4yaap+baad/faaa/3gaap//aad//qaa//kaap/1aad/8aaa/+waap/naad/ 4waa/80aqp+xaj//oqdf/5ka//+zap//mqd//5ka//+zap//mqd//5ka//+zap//mqd//5ka//+bam//nqcp/5saip+xaad/kwaa/44aap+ kaad/hgaa/4iaap98aad/eaaa//8aap/+aad/+qaa//uaap/waad/7aaa/+gaap/kaad/3waa/9oaap/vaad/0gaa/80aap/iaad/xaaa/ 78aap+7aad/twaa/7iaap+uaad/qqaa/6uaap+gaad/naaa/5caap+taad/jgaa/4oaap+gaad/gqaa/30aap95aad//waa//4aap/6aad/ 9qaa//eaap/saad/6aaa/+maap/eaad/2waa/9uaap/raad/zqaa/8gaap/eaad/vwaa/7saap+2aad/sgaa/64aap+paad/paaa/6aaap+ caad/maaa/5maap+oaad/igaa/4yaap+baad/fqaa/3gaap//aad//gaa//kaap/1aad/8aaa/+waap/oaad/4waa/98aap/aaad/1qaa/ 9eaap/maad/yaaa/8qaap/aaad/uwaa/7yaap+zaad/rgaa/6kaap+laad/oaaa/5waap+xaad/kwaa/44aap+kaad/hqaa/4eaap99aad/eaaa//8aap/+aad/+qaa//uaap/xaad/7aaa/ +gaap/jaad/3waa/9oaap/waad/0qaa/8waap/jaad/xaaa/78aap+7aad/tgaa/7maap+uaad/qqaa/6uaap+haad/mwaa/5caap+taad/ jwaa/4oaap+gaad/gqaa/30aap94aad//waa//4aap/5aad/9qaa//eaap/saad/5waa/+maap/faad/2gaa/9yaap/raad/zqaa/8kaap/ Daad/waaa/7saap+2aad/sgaa/64aap+paad/pqaa/6aaap+caad/lwaa/5maap+oaad/igaa/4yaap+caad/fqaa/3gaap8= ";

$url = Explode (', ' $base 64);

$a = file_put_contents ('./test.png ', Base64_decode ($url [1]));//Returns the number of bytes

Print_r ($a);

2. Turn the image into Base64 data

$str = file_get_contents ('./test.png ');

echo Base64_encode ($STR);

Reference: http://www.cnblogs.com/dxwhut/p/5321763.html

PHP base64 the conversion of data to images