Abnormal PHP string length and when searching Elasticsearch using PHP
I got abnormal PHP string from Elasticsearch.
step 1: php curl to invoke elastic search to get result $value,
step 2: php $value2 = strip_tags($value); // to remove all html tags
step 3: var_dump($value2)
step 4: echo 'len='.mb_strlen($value2);
step 5: echo 'substr='.mb_substr($value2);
step 3 Output is:
string(974) " Ginger Never believe diet can help with cancer, but nice
try. 2018-01-22 11:20:21 Gland Totally no snacks? there must be some
snacks on the list, right... 2018-01-22 10:25:32 Reloated Article: How
to Treat Bladder Cancer with Diet?"
step 4 output is:
len=974
step 5 output is:
Empty string
Problem:
- The total number of chars is about 231. Obviously less than 974.
mb_strlen($value2) = 974, when replacemb_strlenwithstrlen, get the same 974- when invoke
php mb_substr($value2), return empty string. use substr, get the same empty string.
What is the reason and how to fix it?
Thanks.
php string elasticsearch substr strlen
edited Nov 23 '18 at 10:42
Grokify
7,51322339
asked Nov 23 '18 at 9:41
steven sunsteven sun
111
add a comment |
I got abnormal PHP string from Elasticsearch.
step 1: php curl to invoke elastic search to get result $value,
step 2: php $value2 = strip_tags($value); // to remove all html tags
step 3: var_dump($value2)
step 4: echo 'len='.mb_strlen($value2);
step 5: echo 'substr='.mb_substr($value2);
step 3 Output is:
string(974) " Ginger Never believe diet can help with cancer, but nice
try. 2018-01-22 11:20:21 Gland Totally no snacks? there must be some
snacks on the list, right... 2018-01-22 10:25:32 Reloated Article: How
to Treat Bladder Cancer with Diet?"
step 4 output is:
len=974
step 5 output is:
Empty string
Problem:
- The total number of chars is about 231. Obviously less than 974.
mb_strlen($value2) = 974, when replacemb_strlenwithstrlen, get the same 974- when invoke
php mb_substr($value2), return empty string. use substr, get the same empty string.
What is the reason and how to fix it?
Thanks.
php string elasticsearch substr strlen
edited Nov 23 '18 at 10:42
Grokify
7,51322339
asked Nov 23 '18 at 9:41
steven sunsteven sun
111
I think it may convert some of the characters to ASCII. Trystrlen(utf8_decode($value2));ormb_strlen($value2, 'UTF-8');It must be some encoding issue.
– WKoppel
Nov 23 '18 at 10:00
add a comment |
I got abnormal PHP string from Elasticsearch.
step 1: php curl to invoke elastic search to get result $value,
step 2: php $value2 = strip_tags($value); // to remove all html tags
step 3: var_dump($value2)
step 4: echo 'len='.mb_strlen($value2);
step 5: echo 'substr='.mb_substr($value2);
step 3 Output is:
string(974) " Ginger Never believe diet can help with cancer, but nice
try. 2018-01-22 11:20:21 Gland Totally no snacks? there must be some
snacks on the list, right... 2018-01-22 10:25:32 Reloated Article: How
to Treat Bladder Cancer with Diet?"
step 4 output is:
len=974
step 5 output is:
Empty string
Problem:
- The total number of chars is about 231. Obviously less than 974.
mb_strlen($value2) = 974, when replacemb_strlenwithstrlen, get the same 974- when invoke
php mb_substr($value2), return empty string. use substr, get the same empty string.
What is the reason and how to fix it?
Thanks.
php string elasticsearch substr strlen
edited Nov 23 '18 at 10:42
Grokify
7,51322339
asked Nov 23 '18 at 9:41
steven sunsteven sun
111
I got abnormal PHP string from Elasticsearch.
step 1: php curl to invoke elastic search to get result $value,
step 2: php $value2 = strip_tags($value); // to remove all html tags
step 3: var_dump($value2)
step 4: echo 'len='.mb_strlen($value2);
step 5: echo 'substr='.mb_substr($value2);
step 3 Output is:
string(974) " Ginger Never believe diet can help with cancer, but nice
try. 2018-01-22 11:20:21 Gland Totally no snacks? there must be some
snacks on the list, right... 2018-01-22 10:25:32 Reloated Article: How
to Treat Bladder Cancer with Diet?"
step 4 output is:
len=974
step 5 output is:
Empty string
Problem:
- The total number of chars is about 231. Obviously less than 974.
mb_strlen($value2) = 974, when replacemb_strlenwithstrlen, get the same 974- when invoke
php mb_substr($value2), return empty string. use substr, get the same empty string.
What is the reason and how to fix it?
Thanks.
php string elasticsearch substr strlen
php string elasticsearch substr strlen
edited Nov 23 '18 at 10:42
Grokify
7,51322339
asked Nov 23 '18 at 9:41
steven sunsteven sun
111
edited Nov 23 '18 at 10:42
Grokify
7,51322339
asked Nov 23 '18 at 9:41
steven sunsteven sun
111
edited Nov 23 '18 at 10:42
Grokify
7,51322339
edited Nov 23 '18 at 10:42
Grokify
7,51322339
edited Nov 23 '18 at 10:42
Grokify
7,51322339
7,51322339
asked Nov 23 '18 at 9:41
steven sunsteven sun
111
asked Nov 23 '18 at 9:41
steven sunsteven sun
111
asked Nov 23 '18 at 9:41
steven sunsteven sun
111
111
I think it may convert some of the characters to ASCII. Trystrlen(utf8_decode($value2));ormb_strlen($value2, 'UTF-8');It must be some encoding issue.
– WKoppel
Nov 23 '18 at 10:00
add a comment |
I think it may convert some of the characters to ASCII. Trystrlen(utf8_decode($value2));ormb_strlen($value2, 'UTF-8');It must be some encoding issue.
– WKoppel
Nov 23 '18 at 10:00
I think it may convert some of the characters to ASCII. Try
strlen(utf8_decode($value2)); or mb_strlen($value2, 'UTF-8'); It must be some encoding issue.– WKoppel
Nov 23 '18 at 10:00
I think it may convert some of the characters to ASCII. Try
strlen(utf8_decode($value2)); or mb_strlen($value2, 'UTF-8'); It must be some encoding issue.– WKoppel
Nov 23 '18 at 10:00
add a comment |
1 Answer
1
active
oldest
votes
Sorry, I fix it.
The real text of string contains lots of space char, and they are not rendered in browser. Remove them and everything is OK.
answered Nov 23 '18 at 10:09
steven sunsteven sun
111
add a comment |
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53444088%2fabnormal-php-string-length-and-when-searching-elasticsearch-using-php%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Sorry, I fix it.
The real text of string contains lots of space char, and they are not rendered in browser. Remove them and everything is OK.
answered Nov 23 '18 at 10:09
steven sunsteven sun
111
add a comment |
Sorry, I fix it.
The real text of string contains lots of space char, and they are not rendered in browser. Remove them and everything is OK.
answered Nov 23 '18 at 10:09
steven sunsteven sun
111
add a comment |
Sorry, I fix it.
The real text of string contains lots of space char, and they are not rendered in browser. Remove them and everything is OK.
answered Nov 23 '18 at 10:09
steven sunsteven sun
111
Sorry, I fix it.
The real text of string contains lots of space char, and they are not rendered in browser. Remove them and everything is OK.
answered Nov 23 '18 at 10:09
steven sunsteven sun
111
answered Nov 23 '18 at 10:09
steven sunsteven sun
111
answered Nov 23 '18 at 10:09
steven sunsteven sun
111
answered Nov 23 '18 at 10:09
steven sunsteven sun
111
111
add a comment |
add a comment |
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53444088%2fabnormal-php-string-length-and-when-searching-elasticsearch-using-php%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
I think it may convert some of the characters to ASCII. Try
strlen(utf8_decode($value2));ormb_strlen($value2, 'UTF-8');It must be some encoding issue.– WKoppel
Nov 23 '18 at 10:00